/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%     CCCC   OOO   L       OOO   RRRR   SSSSS  PPPP    AAA    CCCC  EEEEE     %
%    C      O   O  L      O   O  R   R  SS     P   P  A   A  C      E         %
%    C      O   O  L      O   O  RRRR    SSS   PPPP   AAAAA  C      EEE       %
%    C      O   O  L      O   O  R R       SS  P      A   A  C      E         %
%     CCCC   OOO   LLLLL   OOO   R  R   SSSSS  P      A   A   CCCC  EEEEE     %
%                                                                             %
%                                                                             %
%                     MagickCore Image Colorspace Methods                     %
%                                                                             %
%                              Software Design                                %
%                                   Cristy                                    %
%                                 July 1992                                   %
%                                                                             %
%                                                                             %
%  Copyright 1999-2015 ImageMagick Studio LLC, a non-profit organization      %
%  dedicated to making software imaging solutions freely available.           %
%                                                                             %
%  You may not use this file except in compliance with the License.  You may  %
%  obtain a copy of the License at                                            %
%                                                                             %
%    http://www.imagemagick.org/script/license.php                            %
%                                                                             %
%  Unless required by applicable law or agreed to in writing, software        %
%  distributed under the License is distributed on an "AS IS" BASIS,          %
%  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   %
%  See the License for the specific language governing permissions and        %
%  limitations under the License.                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%
*/

/*
  Include declarations.
*/
#include "magick/studio.h"
#include "magick/property.h"
#include "magick/cache.h"
#include "magick/cache-private.h"
#include "magick/cache-view.h"
#include "magick/color.h"
#include "magick/color-private.h"
#include "magick/colorspace.h"
#include "magick/colorspace-private.h"
#include "magick/exception.h"
#include "magick/exception-private.h"
#include "magick/image.h"
#include "magick/image-private.h"
#include "magick/gem.h"
#include "magick/gem-private.h"
#include "magick/memory_.h"
#include "magick/monitor.h"
#include "magick/monitor-private.h"
#include "magick/pixel-private.h"
#include "magick/quantize.h"
#include "magick/quantum.h"
#include "magick/resource_.h"
#include "magick/string_.h"
#include "magick/string-private.h"
#include "magick/utility.h"

/*
  Typedef declarations.
*/
typedef struct _TransformPacket
{
  MagickRealType
    x,
    y,
    z;
} TransformPacket;

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+     R G B T r a n s f o r m I m a g e                                       %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  RGBTransformImage() converts the reference image from sRGB to an alternate
%  colorspace.  The transformation matrices are not the standard ones: the
%  weights are rescaled to normalized the range of the transformed values to
%  be [0..QuantumRange].
%
%  The format of the RGBTransformImage method is:
%
%      MagickBooleanType RGBTransformImage(Image *image,
%        const ColorspaceType colorspace)
%
%  A description of each parameter follows:
%
%    o image: the image.
%
%    o colorspace: the colorspace to transform the image to.
%
*/

static inline void ConvertRGBToCMY(const Quantum red,const Quantum green,
  const Quantum blue,double *cyan,double *magenta,double *yellow)
{
  *cyan=QuantumScale*(QuantumRange-red);
  *magenta=QuantumScale*(QuantumRange-green);
  *yellow=QuantumScale*(QuantumRange-blue);
}

static void ConvertRGBToLab(const Quantum red,const Quantum green,
  const Quantum blue,double *L,double *a,double *b)
{
  double
    X,
    Y,
    Z;

  ConvertRGBToXYZ(red,green,blue,&X,&Y,&Z);
  ConvertXYZToLab(X,Y,Z,L,a,b);
}

static inline void ConvertXYZToLMS(const double x,const double y,
  const double z,double *L,double *M,double *S)
{
  *L=0.7328*x+0.4296*y-0.1624*z;
  *M=(-0.7036*x+1.6975*y+0.0061*z);
  *S=0.0030*x+0.0136*y+0.9834*z;
}

static void ConvertRGBToLMS(const Quantum red,const Quantum green,
  const Quantum blue,double *L,double *M,double *S)
{
  double
    X,
    Y,
    Z;

  ConvertRGBToXYZ(red,green,blue,&X,&Y,&Z);
  ConvertXYZToLMS(X,Y,Z,L,M,S);
}

static void ConvertRGBToLuv(const Quantum red,const Quantum green,
  const Quantum blue,double *L,double *u,double *v)
{
  double
    X,
    Y,
    Z;

  ConvertRGBToXYZ(red,green,blue,&X,&Y,&Z);
  ConvertXYZToLuv(X,Y,Z,L,u,v);
}

static void ConvertRGBToxyY(const Quantum red,const Quantum green,
  const Quantum blue,double *low_x,double *low_y,double *cap_Y)
{
  double
    X,
    Y,
    Z;

  ConvertRGBToXYZ(red,green,blue,&X,&Y,&Z);
  *low_x=X/(X+Y+Z);
  *low_y=Y/(X+Y+Z);
  *cap_Y=Y;
}

static void ConvertRGBToYPbPr(const Quantum red,const Quantum green,
  const Quantum blue,double *Y,double *Pb,double *Pr)
{
  *Y=QuantumScale*(0.298839*red+0.586811*green+0.114350*blue);
  *Pb=QuantumScale*((-0.1687367)*red-0.331264*green+0.5*blue)+0.5;
  *Pr=QuantumScale*(0.5*red-0.418688*green-0.081312*blue)+0.5;
}

static void ConvertRGBToYCbCr(const Quantum red,const Quantum green,
  const Quantum blue,double *Y,double *Cb,double *Cr)
{
  ConvertRGBToYPbPr(red,green,blue,Y,Cb,Cr);
}

static void ConvertRGBToYUV(const Quantum red,const Quantum green,
  const Quantum blue,double *Y,double *U,double *V)
{
  *Y=QuantumScale*(0.298839*red+0.586811*green+0.114350*blue);
  *U=QuantumScale*((-0.147)*red-0.289*green+0.436*blue)+0.5;
  *V=QuantumScale*(0.615*red-0.515*green-0.100*blue)+0.5;
}

static void ConvertRGBToYDbDr(const Quantum red,const Quantum green,
  const Quantum blue,double *Y,double *Db,double *Dr)
{
  *Y=QuantumScale*(0.298839*red+0.586811*green+0.114350*blue);
  *Db=QuantumScale*(-0.450*red-0.883*green+1.333*blue)+0.5;
  *Dr=QuantumScale*(-1.333*red+1.116*green+0.217*blue)+0.5;
}

static void ConvertRGBToYIQ(const Quantum red,const Quantum green,
  const Quantum blue,double *Y,double *I,double *Q)
{
  *Y=QuantumScale*(0.298839*red+0.586811*green+0.114350*blue);
  *I=QuantumScale*(0.595716*red-0.274453*green-0.321263*blue)+0.5;
  *Q=QuantumScale*(0.211456*red-0.522591*green+0.311135*blue)+0.5;
}

MagickExport MagickBooleanType RGBTransformImage(Image *image,
  const ColorspaceType colorspace)
{
#define RGBTransformImageTag  "RGBTransform/Image"

  CacheView
    *image_view;

  ExceptionInfo
    *exception;

  MagickBooleanType
    status;

  MagickOffsetType
    progress;

  PrimaryInfo
    primary_info;

  register ssize_t
    i;

  ssize_t
    y;

  TransformPacket
    *x_map,
    *y_map,
    *z_map;

  assert(image != (Image *) NULL);
  assert(image->signature == MagickSignature);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
  assert(colorspace != sRGBColorspace);
  assert(colorspace != TransparentColorspace);
  assert(colorspace != UndefinedColorspace);
  status=MagickTrue;
  progress=0;
  exception=(&image->exception);
  switch (colorspace)
  {
    case CMYKColorspace:
    {
      MagickPixelPacket
        zero;

      /*
        Convert RGB to CMYK colorspace.
      */
      if (image->storage_class == PseudoClass)
        {
          if (SyncImage(image) == MagickFalse)
            return(MagickFalse);
          if (SetImageStorageClass(image,DirectClass) == MagickFalse)
            return(MagickFalse);
        }
      if (SetImageColorspace(image,colorspace) == MagickFalse)
        return(MagickFalse);
      GetMagickPixelPacket(image,&zero);
      image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) shared(status) \
        magick_threads(image,image,image->rows,1)
#endif
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        MagickBooleanType
          sync;

        MagickPixelPacket
          pixel;

        register IndexPacket
          *restrict indexes;

        register ssize_t
          x;

        register PixelPacket
          *restrict q;

        if (status == MagickFalse)
          continue;
        q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
          exception);
        if (q == (PixelPacket *) NULL)
          {
            status=MagickFalse;
            continue;
          }
        indexes=GetCacheViewAuthenticIndexQueue(image_view);
        pixel=zero;
        for (x=0; x < (ssize_t) image->columns; x++)
        {
          SetMagickPixelPacket(image,q,indexes+x,&pixel);
          pixel.red=(MagickRealType) pixel.red;
          pixel.green=(MagickRealType) pixel.green;
          pixel.blue=(MagickRealType) pixel.blue;
          ConvertRGBToCMYK(&pixel);
          SetPixelPacket(image,&pixel,q,indexes+x);
          q++;
        }
        sync=SyncCacheViewAuthenticPixels(image_view,exception);
        if (sync == MagickFalse)
          status=MagickFalse;
      }
      image_view=DestroyCacheView(image_view);
      image->type=image->matte == MagickFalse ? ColorSeparationType :
        ColorSeparationMatteType;
      if (SetImageColorspace(image,colorspace) == MagickFalse)
        return(MagickFalse);
      return(status);
    }
    case GRAYColorspace:
    {
      /*
        Transform image from sRGB to GRAY.
      */
      if (image->storage_class == PseudoClass)
        {
          if (SyncImage(image) == MagickFalse)
            return(MagickFalse);
          if (SetImageStorageClass(image,DirectClass) == MagickFalse)
            return(MagickFalse);
        }
      image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) shared(status) \
        magick_threads(image,image,image->rows,1)
#endif
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        MagickBooleanType
          sync;

        register ssize_t
          x;

        register PixelPacket
          *restrict q;

        if (status == MagickFalse)
          continue;
        q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
          exception);
        if (q == (PixelPacket *) NULL)
          {
            status=MagickFalse;
            continue;
          }
        for (x=0; x < (ssize_t) image->columns; x++)
        {
          SetPixelGray(q,ClampToQuantum(GetPixelIntensity(image,q)));
          q++;
        }
        sync=SyncCacheViewAuthenticPixels(image_view,exception);
        if (sync == MagickFalse)
          status=MagickFalse;
      }
      image_view=DestroyCacheView(image_view);
      if (SetImageColorspace(image,colorspace) == MagickFalse)
        return(MagickFalse);
      image->type=GrayscaleType;
      return(status);
    }
    case CMYColorspace:
    case HCLColorspace:
    case HCLpColorspace:
    case HSBColorspace:
    case HSIColorspace:
    case HSLColorspace:
    case HSVColorspace:
    case HWBColorspace:
    case LabColorspace:
    case LCHColorspace:
    case LCHabColorspace:
    case LCHuvColorspace:
    case LMSColorspace:
    case LuvColorspace:
    case xyYColorspace:
    case XYZColorspace:
    case YCbCrColorspace:
    case YDbDrColorspace:
    case YIQColorspace:
    case YPbPrColorspace:
    case YUVColorspace:
    {
      /*
        Transform image from sRGB to HSI.
      */
      if (image->storage_class == PseudoClass)
        {
          if (SyncImage(image) == MagickFalse)
            return(MagickFalse);
          if (SetImageStorageClass(image,DirectClass) == MagickFalse)
            return(MagickFalse);
        }
      image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) shared(status) \
        magick_threads(image,image,image->rows,1)
#endif
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        MagickBooleanType
          sync;

        register ssize_t
          x;

        register PixelPacket
          *restrict q;

        if (status == MagickFalse)
          continue;
        q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
          exception);
        if (q == (PixelPacket *) NULL)
          {
            status=MagickFalse;
            continue;
          }
        for (x=0; x < (ssize_t) image->columns; x++)
        {
          double
            X,
            Y,
            Z;

          Quantum
            blue,
            green,
            red;

          red=ClampToQuantum((MagickRealType) GetPixelRed(q));
          green=ClampToQuantum((MagickRealType) GetPixelGreen(q));
          blue=ClampToQuantum((MagickRealType) GetPixelBlue(q));
          switch (colorspace)
          {
            case CMYColorspace:
            {
              ConvertRGBToCMY(red,green,blue,&X,&Y,&Z);
              break;
            }
            case HCLColorspace:
            {
              ConvertRGBToHCL(red,green,blue,&X,&Y,&Z);
              break;
            }
            case HCLpColorspace:
            {
              ConvertRGBToHCLp(red,green,blue,&X,&Y,&Z);
              break;
            }
            case HSBColorspace:
            {
              ConvertRGBToHSB(red,green,blue,&X,&Y,&Z);
              break;
            }
            case HSIColorspace:
            {
              ConvertRGBToHSI(red,green,blue,&X,&Y,&Z);
              break;
            }
            case HSLColorspace:
            {
              ConvertRGBToHSL(red,green,blue,&X,&Y,&Z);
              break;
            }
            case HSVColorspace:
            {
              ConvertRGBToHSV(red,green,blue,&X,&Y,&Z);
              break;
            }
            case HWBColorspace:
            {
              ConvertRGBToHWB(red,green,blue,&X,&Y,&Z);
              break;
            }
            case LabColorspace:
            {
              ConvertRGBToLab(red,green,blue,&X,&Y,&Z);
              break;
            }
            case LCHColorspace:
            case LCHabColorspace:
            {
              ConvertRGBToLCHab(red,green,blue,&X,&Y,&Z);
              break;
            }
            case LCHuvColorspace:
            {
              ConvertRGBToLCHuv(red,green,blue,&X,&Y,&Z);
              break;
            }
            case LMSColorspace:
            {
              ConvertRGBToLMS(red,green,blue,&X,&Y,&Z);
              break;
            }
            case LuvColorspace:
            {
              ConvertRGBToLuv(red,green,blue,&X,&Y,&Z);
              break;
            }
            case xyYColorspace:
            {
              ConvertRGBToxyY(red,green,blue,&X,&Y,&Z);
              break;
            }
            case XYZColorspace:
            {
              ConvertRGBToXYZ(red,green,blue,&X,&Y,&Z);
              break;
            }
            case YCbCrColorspace:
            {
              ConvertRGBToYCbCr(red,green,blue,&X,&Y,&Z);
              break;
            }
            case YDbDrColorspace:
            {
              ConvertRGBToYDbDr(red,green,blue,&X,&Y,&Z);
              break;
            }
            case YIQColorspace:
            {
              ConvertRGBToYIQ(red,green,blue,&X,&Y,&Z);
              break;
            }
            case YPbPrColorspace:
            {
              ConvertRGBToYPbPr(red,green,blue,&X,&Y,&Z);
              break;
            }
            case YUVColorspace:
            {
              ConvertRGBToYUV(red,green,blue,&X,&Y,&Z);
              break;
            }
            default:
            {
              X=QuantumScale*red;
              Y=QuantumScale*green;
              Z=QuantumScale*blue;
              break;
            }
          }
          SetPixelRed(q,ClampToQuantum((MagickRealType) QuantumRange*X));
          SetPixelGreen(q,ClampToQuantum((MagickRealType) QuantumRange*Y));
          SetPixelBlue(q,ClampToQuantum((MagickRealType) QuantumRange*Z));
          q++;
        }
        sync=SyncCacheViewAuthenticPixels(image_view,exception);
        if (sync == MagickFalse)
          status=MagickFalse;
      }
      image_view=DestroyCacheView(image_view);
      if (SetImageColorspace(image,colorspace) == MagickFalse)
        return(MagickFalse);
      return(status);
    }
    case LogColorspace:
    {
#define DisplayGamma  (1.0/1.7)
#define FilmGamma  0.6
#define ReferenceBlack  95.0
#define ReferenceWhite  685.0

      const char
        *value;

      double
        black,
        density,
        film_gamma,
        gamma,
        reference_black,
        reference_white;

      Quantum
        *logmap;

      /*
        Transform RGB to Log colorspace.
      */
      density=DisplayGamma;
      gamma=DisplayGamma;
      value=GetImageProperty(image,"gamma");
      if (value != (const char *) NULL)
        gamma=PerceptibleReciprocal(StringToDouble(value,(char **) NULL));
      film_gamma=FilmGamma;
      value=GetImageProperty(image,"film-gamma");
      if (value != (const char *) NULL)
        film_gamma=StringToDouble(value,(char **) NULL);
      reference_black=ReferenceBlack;
      value=GetImageProperty(image,"reference-black");
      if (value != (const char *) NULL)
        reference_black=StringToDouble(value,(char **) NULL);
      reference_white=ReferenceWhite;
      value=GetImageProperty(image,"reference-white");
      if (value != (const char *) NULL)
        reference_white=StringToDouble(value,(char **) NULL);
      logmap=(Quantum *) AcquireQuantumMemory((size_t) MaxMap+1UL,
        sizeof(*logmap));
      if (logmap == (Quantum *) NULL)
        ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed",
          image->filename);
      black=pow(10.0,(reference_black-reference_white)*(gamma/density)*0.002/
        film_gamma);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) \
        magick_threads(image,image,1,1)
#endif
      for (i=0; i <= (ssize_t) MaxMap; i++)
        logmap[i]=ScaleMapToQuantum((MagickRealType) (MaxMap*(reference_white+
          log10(black+(1.0*i/MaxMap)*(1.0-black))/((gamma/density)*0.002/
          film_gamma))/1024.0));
      image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) shared(status) \
        magick_threads(image,image,image->rows,1)
#endif
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        MagickBooleanType
          sync;

        register ssize_t
          x;

        register PixelPacket
          *restrict q;

        if (status == MagickFalse)
          continue;
        q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
          exception);
        if (q == (PixelPacket *) NULL)
          {
            status=MagickFalse;
            continue;
          }
        for (x=(ssize_t) image->columns; x != 0; x--)
        {
          Quantum
            blue,
            green,
            red;

          red=ClampToQuantum(DecodePixelGamma((MagickRealType)
            GetPixelRed(q)));
          green=ClampToQuantum(DecodePixelGamma((MagickRealType)
            GetPixelGreen(q)));
          blue=ClampToQuantum(DecodePixelGamma((MagickRealType)
            GetPixelBlue(q)));
          SetPixelRed(q,logmap[ScaleQuantumToMap(red)]);
          SetPixelGreen(q,logmap[ScaleQuantumToMap(green)]);
          SetPixelBlue(q,logmap[ScaleQuantumToMap(blue)]);
          q++;
        }
        sync=SyncCacheViewAuthenticPixels(image_view,exception);
        if (sync == MagickFalse)
          status=MagickFalse;
      }
      image_view=DestroyCacheView(image_view);
      logmap=(Quantum *) RelinquishMagickMemory(logmap);
      if (SetImageColorspace(image,colorspace) == MagickFalse)
        return(MagickFalse);
      return(status);
    }
    case RGBColorspace:
    case scRGBColorspace:
    {
      /*
        Transform image from sRGB to linear RGB.
      */
      if (image->storage_class == PseudoClass)
        {
          if (SyncImage(image) == MagickFalse)
            return(MagickFalse);
          if (SetImageStorageClass(image,DirectClass) == MagickFalse)
            return(MagickFalse);
        }
      image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) shared(status) \
        magick_threads(image,image,image->rows,1)
#endif
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        MagickBooleanType
          sync;

        register ssize_t
          x;

        register PixelPacket
          *restrict q;

        if (status == MagickFalse)
          continue;
        q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
          exception);
        if (q == (PixelPacket *) NULL)
          {
            status=MagickFalse;
            continue;
          }
        for (x=0; x < (ssize_t) image->columns; x++)
        {
          Quantum
            blue,
            green,
            red;

          red=ClampToQuantum(DecodePixelGamma((MagickRealType)
            GetPixelRed(q)));
          green=ClampToQuantum(DecodePixelGamma((MagickRealType)
            GetPixelGreen(q)));
          blue=ClampToQuantum(DecodePixelGamma((MagickRealType)
            GetPixelBlue(q)));
          SetPixelRed(q,red);
          SetPixelGreen(q,green);
          SetPixelBlue(q,blue);
          q++;
        }
        sync=SyncCacheViewAuthenticPixels(image_view,exception);
        if (sync == MagickFalse)
          status=MagickFalse;
      }
      image_view=DestroyCacheView(image_view);
      if (SetImageColorspace(image,colorspace) == MagickFalse)
        return(MagickFalse);
      return(status);
    }
    default:
      break;
  }
  /*
    Allocate the tables.
  */
  x_map=(TransformPacket *) AcquireQuantumMemory((size_t) MaxMap+1UL,
    sizeof(*x_map));
  y_map=(TransformPacket *) AcquireQuantumMemory((size_t) MaxMap+1UL,
    sizeof(*y_map));
  z_map=(TransformPacket *) AcquireQuantumMemory((size_t) MaxMap+1UL,
    sizeof(*z_map));
  if ((x_map == (TransformPacket *) NULL) ||
      (y_map == (TransformPacket *) NULL) ||
      (z_map == (TransformPacket *) NULL))
    ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed",
      image->filename);
  (void) ResetMagickMemory(&primary_info,0,sizeof(primary_info));
  switch (colorspace)
  {
    case OHTAColorspace:
    {
      /*
        Initialize OHTA tables:

          I1 = 0.33333*R+0.33334*G+0.33333*B
          I2 = 0.50000*R+0.00000*G-0.50000*B
          I3 =-0.25000*R+0.50000*G-0.25000*B

        I and Q, normally -0.5 through 0.5, are normalized to the range 0
        through QuantumRange.
      */
      primary_info.y=(double) (MaxMap+1.0)/2.0;
      primary_info.z=(double) (MaxMap+1.0)/2.0;
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) \
        magick_threads(image,image,1,1)
#endif
      for (i=0; i <= (ssize_t) MaxMap; i++)
      {
        x_map[i].x=(MagickRealType) (0.33333*(double) i);
        y_map[i].x=(MagickRealType) (0.33334*(double) i);
        z_map[i].x=(MagickRealType) (0.33333*(double) i);
        x_map[i].y=(MagickRealType) (0.50000*(double) i);
        y_map[i].y=(MagickRealType) (0.00000*(double) i);
        z_map[i].y=(MagickRealType) (-0.50000*(double) i);
        x_map[i].z=(MagickRealType) (-0.25000*(double) i);
        y_map[i].z=(MagickRealType) (0.50000*(double) i);
        z_map[i].z=(MagickRealType) (-0.25000*(double) i);
      }
      break;
    }
    case Rec601LumaColorspace:
    {
      /*
        Initialize Rec601 luma tables:

          G = 0.298839*R+0.586811*G+0.114350*B
      */
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4)
#endif
      for (i=0; i <= (ssize_t) MaxMap; i++)
      {
        x_map[i].x=(MagickRealType) (0.298839*(double) i);
        y_map[i].x=(MagickRealType) (0.586811*(double) i);
        z_map[i].x=(MagickRealType) (0.114350*(double) i);
        x_map[i].y=(MagickRealType) (0.298839*(double) i);
        y_map[i].y=(MagickRealType) (0.586811*(double) i);
        z_map[i].y=(MagickRealType) (0.114350*(double) i);
        x_map[i].z=(MagickRealType) (0.298839*(double) i);
        y_map[i].z=(MagickRealType) (0.586811*(double) i);
        z_map[i].z=(MagickRealType) (0.114350*(double) i);
      }
      break;
    }
    case Rec601YCbCrColorspace:
    {
      /*
        Initialize YCbCr tables (ITU-R BT.601):

          Y =  0.2988390*R+0.5868110*G+0.1143500*B
          Cb= -0.1687367*R-0.3312640*G+0.5000000*B
          Cr=  0.5000000*R-0.4186880*G-0.0813120*B

        Cb and Cr, normally -0.5 through 0.5, are normalized to the range 0
        through QuantumRange.
      */
      primary_info.y=(double) (MaxMap+1.0)/2.0;
      primary_info.z=(double) (MaxMap+1.0)/2.0;
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) \
        magick_threads(image,image,1,1)
#endif
      for (i=0; i <= (ssize_t) MaxMap; i++)
      {
        x_map[i].x=(MagickRealType) (0.298839*(double) i);
        y_map[i].x=(MagickRealType) (0.586811*(double) i);
        z_map[i].x=(MagickRealType) (0.114350*(double) i);
        x_map[i].y=(MagickRealType) (-0.1687367*(double) i);
        y_map[i].y=(MagickRealType) (-0.331264*(double) i);
        z_map[i].y=(MagickRealType) (0.500000*(double) i);
        x_map[i].z=(MagickRealType) (0.500000*(double) i);
        y_map[i].z=(MagickRealType) (-0.418688*(double) i);
        z_map[i].z=(MagickRealType) (-0.081312*(double) i);
      }
      break;
    }
    case Rec709LumaColorspace:
    {
      /*
        Initialize Rec709 luma tables:

          G = 0.212656*R+0.715158*G+0.072186*B
      */
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4)
#endif
      for (i=0; i <= (ssize_t) MaxMap; i++)
      {
        x_map[i].x=(MagickRealType) (0.212656*(double) i);
        y_map[i].x=(MagickRealType) (0.715158*(double) i);
        z_map[i].x=(MagickRealType) (0.072186*(double) i);
        x_map[i].y=(MagickRealType) (0.212656*(double) i);
        y_map[i].y=(MagickRealType) (0.715158*(double) i);
        z_map[i].y=(MagickRealType) (0.072186*(double) i);
        x_map[i].z=(MagickRealType) (0.212656*(double) i);
        y_map[i].z=(MagickRealType) (0.715158*(double) i);
        z_map[i].z=(MagickRealType) (0.072186*(double) i);
      }
      break;
    }
    case Rec709YCbCrColorspace:
    {
      /*
        Initialize YCbCr tables (ITU-R BT.709):

          Y =  0.212656*R+0.715158*G+0.072186*B
          Cb= -0.114572*R-0.385428*G+0.500000*B
          Cr=  0.500000*R-0.454153*G-0.045847*B

        Cb and Cr, normally -0.5 through 0.5, are normalized to the range 0
        through QuantumRange.
      */
      primary_info.y=(double) (MaxMap+1.0)/2.0;
      primary_info.z=(double) (MaxMap+1.0)/2.0;
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) \
        magick_threads(image,image,1,1)
#endif
      for (i=0; i <= (ssize_t) MaxMap; i++)
      {
        x_map[i].x=(MagickRealType) (0.212656*(double) i);
        y_map[i].x=(MagickRealType) (0.715158*(double) i);
        z_map[i].x=(MagickRealType) (0.072186*(double) i);
        x_map[i].y=(MagickRealType) (-0.114572*(double) i);
        y_map[i].y=(MagickRealType) (-0.385428*(double) i);
        z_map[i].y=(MagickRealType) (0.500000*(double) i);
        x_map[i].z=(MagickRealType) (0.500000*(double) i);
        y_map[i].z=(MagickRealType) (-0.454153*(double) i);
        z_map[i].z=(MagickRealType) (-0.045847*(double) i);
      }
      break;
    }
    case YCCColorspace:
    {
      /*
        Initialize YCC tables:

          Y =  0.298839*R+0.586811*G+0.114350*B
          C1= -0.298839*R-0.586811*G+0.88600*B
          C2=  0.70100*R-0.586811*G-0.114350*B

        YCC is scaled by 1.3584.  C1 zero is 156 and C2 is at 137.
      */
      primary_info.y=(double) ScaleQuantumToMap(ScaleCharToQuantum(156));
      primary_info.z=(double) ScaleQuantumToMap(ScaleCharToQuantum(137));
      for (i=0; i <= (ssize_t) (0.018*MaxMap); i++)
      {
        x_map[i].x=0.003962014134275617*i;
        y_map[i].x=0.007778268551236748*i;
        z_map[i].x=0.001510600706713781*i;
        x_map[i].y=(-0.002426619775463276)*i;
        y_map[i].y=(-0.004763965913702149)*i;
        z_map[i].y=0.007190585689165425*i;
        x_map[i].z=0.006927257754597858*i;
        y_map[i].z=(-0.005800713697502058)*i;
        z_map[i].z=(-0.0011265440570958)*i;
      }
      for ( ; i <= (ssize_t) MaxMap; i++)
      {
        x_map[i].x=0.2201118963486454*(1.099*i-0.099);
        y_map[i].x=0.4321260306242638*(1.099*i-0.099);
        z_map[i].x=0.08392226148409894*(1.099*i-0.099);
        x_map[i].y=(-0.1348122097479598)*(1.099*i-0.099);
        y_map[i].y=(-0.2646647729834528)*(1.099*i-0.099);
        z_map[i].y=0.3994769827314126*(1.099*i-0.099);
        x_map[i].z=0.3848476530332144*(1.099*i-0.099);
        y_map[i].z=(-0.3222618720834477)*(1.099*i-0.099);
        z_map[i].z=(-0.06258578094976668)*(1.099*i-0.099);
      }
      break;
    }
    default:
    {
      /*
        Linear conversion tables.
      */
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) \
        magick_threads(image,image,1,1)
#endif
      for (i=0; i <= (ssize_t) MaxMap; i++)
      {
        x_map[i].x=(MagickRealType) (1.0*(double) i);
        y_map[i].x=(MagickRealType) 0.0;
        z_map[i].x=(MagickRealType) 0.0;
        x_map[i].y=(MagickRealType) 0.0;
        y_map[i].y=(MagickRealType) (1.0*(double) i);
        z_map[i].y=(MagickRealType) 0.0;
        x_map[i].z=(MagickRealType) 0.0;
        y_map[i].z=(MagickRealType) 0.0;
        z_map[i].z=(MagickRealType) (1.0*(double) i);
      }
      break;
    }
  }
  /*
    Convert from sRGB.
  */
  switch (image->storage_class)
  {
    case DirectClass:
    default:
    {
      /*
        Convert DirectClass image.
      */
      image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) shared(status) \
        magick_threads(image,image,image->rows,1)
#endif
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        MagickBooleanType
          sync;

        MagickPixelPacket
          pixel;

        register ssize_t
          x;

        register PixelPacket
          *restrict q;

        register size_t
          blue,
          green,
          red;

        if (status == MagickFalse)
          continue;
        q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
          exception);
        if (q == (PixelPacket *) NULL)
          {
            status=MagickFalse;
            continue;
          }
        for (x=0; x < (ssize_t) image->columns; x++)
        {
          red=ScaleQuantumToMap(ClampToQuantum((MagickRealType)
            GetPixelRed(q)));
          green=ScaleQuantumToMap(ClampToQuantum((MagickRealType)
            GetPixelGreen(q)));
          blue=ScaleQuantumToMap(ClampToQuantum((MagickRealType)
            GetPixelBlue(q)));
          pixel.red=(x_map[red].x+y_map[green].x+z_map[blue].x)+
            (MagickRealType) primary_info.x;
          pixel.green=(x_map[red].y+y_map[green].y+z_map[blue].y)+
            (MagickRealType) primary_info.y;
          pixel.blue=(x_map[red].z+y_map[green].z+z_map[blue].z)+
            (MagickRealType) primary_info.z;
          SetPixelRed(q,ScaleMapToQuantum(pixel.red));
          SetPixelGreen(q,ScaleMapToQuantum(pixel.green));
          SetPixelBlue(q,ScaleMapToQuantum(pixel.blue));
          q++;
        }
        sync=SyncCacheViewAuthenticPixels(image_view,exception);
        if (sync == MagickFalse)
          status=MagickFalse;
        if (image->progress_monitor != (MagickProgressMonitor) NULL)
          {
            MagickBooleanType
              proceed;

#if defined(MAGICKCORE_OPENMP_SUPPORT)
            #pragma omp critical (MagickCore_RGBTransformImage)
#endif
            proceed=SetImageProgress(image,RGBTransformImageTag,progress++,
              image->rows);
            if (proceed == MagickFalse)
              status=MagickFalse;
          }
      }
      image_view=DestroyCacheView(image_view);
      break;
    }
    case PseudoClass:
    {
      register size_t
        blue,
        green,
        red;

      /*
        Convert PseudoClass image.
      */
      for (i=0; i < (ssize_t) image->colors; i++)
      {
        MagickPixelPacket
          pixel;

        red=ScaleQuantumToMap(ClampToQuantum((MagickRealType)
          image->colormap[i].red));
        green=ScaleQuantumToMap(ClampToQuantum((MagickRealType)
          image->colormap[i].green));
        blue=ScaleQuantumToMap(ClampToQuantum((MagickRealType)
          image->colormap[i].blue));
        pixel.red=x_map[red].x+y_map[green].x+z_map[blue].x+primary_info.x;
        pixel.green=x_map[red].y+y_map[green].y+z_map[blue].y+primary_info.y;
        pixel.blue=x_map[red].z+y_map[green].z+z_map[blue].z+primary_info.z;
        image->colormap[i].red=ScaleMapToQuantum(pixel.red);
        image->colormap[i].green=ScaleMapToQuantum(pixel.green);
        image->colormap[i].blue=ScaleMapToQuantum(pixel.blue);
      }
      (void) SyncImage(image);
      break;
    }
  }
  /*
    Relinquish resources.
  */
  z_map=(TransformPacket *) RelinquishMagickMemory(z_map);
  y_map=(TransformPacket *) RelinquishMagickMemory(y_map);
  x_map=(TransformPacket *) RelinquishMagickMemory(x_map);
  if (SetImageColorspace(image,colorspace) == MagickFalse)
    return(MagickFalse);
  return(status);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   S e t I m a g e C o l o r s p a c e                                       %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  SetImageColorspace() sets the colorspace member of the Image structure.
%
%  The format of the SetImageColorspace method is:
%
%      MagickBooleanType SetImageColorspace(Image *image,
%        const ColorspaceType colorspace)
%
%  A description of each parameter follows:
%
%    o image: the image.
%
%    o colorspace: the colorspace.
%
*/
MagickExport MagickBooleanType SetImageColorspace(Image *image,
  const ColorspaceType colorspace)
{
  ImageType
    type;

  MagickBooleanType
    status;

  if (image->colorspace == colorspace)
    return(MagickTrue);
  image->colorspace=colorspace;
  image->rendering_intent=UndefinedIntent;
  image->gamma=1.000/2.200;
  (void) ResetMagickMemory(&image->chromaticity,0,sizeof(image->chromaticity));
  type=image->type;
  if (IsGrayColorspace(colorspace) != MagickFalse)
    {
      if ((image->intensity == Rec601LuminancePixelIntensityMethod) ||
          (image->intensity == Rec709LuminancePixelIntensityMethod))
        image->gamma=1.0;
      type=GrayscaleType;
    }
  else
    if ((IsRGBColorspace(colorspace) != MagickFalse) ||
        (colorspace == XYZColorspace) || (colorspace == xyYColorspace))
      image->gamma=1.0;
    else
      {
        image->rendering_intent=PerceptualIntent;
        image->chromaticity.red_primary.x=0.6400;
        image->chromaticity.red_primary.y=0.3300;
        image->chromaticity.red_primary.z=0.0300;
        image->chromaticity.green_primary.x=0.3000;
        image->chromaticity.green_primary.y=0.6000;
        image->chromaticity.green_primary.z=0.1000;
        image->chromaticity.blue_primary.x=0.1500;
        image->chromaticity.blue_primary.y=0.0600;
        image->chromaticity.blue_primary.z=0.7900;
        image->chromaticity.white_point.x=0.3127;
        image->chromaticity.white_point.y=0.3290;
        image->chromaticity.white_point.z=0.3583;
      }
  status=SyncImagePixelCache(image,&image->exception);
  image->type=type;
  return(status);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   T r a n s f o r m I m a g e C o l o r s p a c e                           %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  TransformImageColorspace() transforms an image colorspace.
%
%  The format of the TransformImageColorspace method is:
%
%      MagickBooleanType TransformImageColorspace(Image *image,
%        const ColorspaceType colorspace)
%
%  A description of each parameter follows:
%
%    o image: the image.
%
%    o colorspace: the colorspace.
%
*/
MagickExport MagickBooleanType TransformImageColorspace(Image *image,
  const ColorspaceType colorspace)
{
  MagickBooleanType
    status;

  assert(image != (Image *) NULL);
  assert(image->signature == MagickSignature);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
  if (image->colorspace == colorspace)
    return(MagickTrue);
  if ((image->colorspace == Rec709LumaColorspace) &&
      (colorspace == sRGBColorspace))
    return(SetImageColorspace(image,colorspace));
  if ((image->colorspace == GRAYColorspace) && (image->gamma != 1.0) &&
      (colorspace == sRGBColorspace))
    return(SetImageColorspace(image,colorspace));
  if (colorspace == UndefinedColorspace)
    return(SetImageColorspace(image,colorspace));
  /*
    Convert the reference image from an alternate colorspace to sRGB.
  */
  (void) DeleteImageProfile(image,"icc");
  (void) DeleteImageProfile(image,"icm");
  if (IssRGBColorspace(colorspace) != MagickFalse)
    return(TransformRGBImage(image,image->colorspace));
  status=MagickTrue;
  if (IssRGBColorspace(image->colorspace) == MagickFalse)
    status=TransformRGBImage(image,image->colorspace);
  if (status == MagickFalse)
    return(status);
  /*
    Convert the reference image from sRGB to an alternate colorspace.
  */
  if (RGBTransformImage(image,colorspace) == MagickFalse)
    status=MagickFalse;
  return(status);
}

/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
+     T r a n s f o r m R G B I m a g e                                       %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  TransformRGBImage() converts the reference image from an alternate
%  colorspace to sRGB.  The transformation matrices are not the standard ones:
%  the weights are rescaled to normalize the range of the transformed values to
%  be [0..QuantumRange].
%
%  The format of the TransformRGBImage method is:
%
%      MagickBooleanType TransformRGBImage(Image *image,
%        const ColorspaceType colorspace)
%
%  A description of each parameter follows:
%
%    o image: the image.
%
%    o colorspace: the colorspace to transform the image to.
%
*/

static inline void ConvertCMYToRGB(const double cyan,const double magenta,
  const double yellow,Quantum *red,Quantum *green,Quantum *blue)
{
  *red=ClampToQuantum(QuantumRange*(1.0-cyan));
  *green=ClampToQuantum(QuantumRange*(1.0-magenta));
  *blue=ClampToQuantum(QuantumRange*(1.0-yellow));
}

static inline void ConvertLMSToXYZ(const double L,const double M,const double S,
  double *X,double *Y,double *Z)
{
  *X=1.096123820835514*L-0.278869000218287*M+0.182745179382773*S;
  *Y=0.454369041975359*L+0.473533154307412*M+0.072097803717229*S;
  *Z=(-0.009627608738429)*L-0.005698031216113*M+1.015325639954543*S;
}

static inline void ConvertLMSToRGB(const double L,const double M,
  const double S,Quantum *red,Quantum *green,Quantum *blue)
{
  double
    X,
    Y,
    Z;

  ConvertLMSToXYZ(L,M,S,&X,&Y,&Z);
  ConvertXYZToRGB(X,Y,Z,red,green,blue);
}

static inline void ConvertLuvToRGB(const double L,const double u,
  const double v,Quantum *red,Quantum *green,Quantum *blue)
{
  double
    X,
    Y,
    Z;

  ConvertLuvToXYZ(100.0*L,354.0*u-134.0,262.0*v-140.0,&X,&Y,&Z);
  ConvertXYZToRGB(X,Y,Z,red,green,blue);
}

static inline ssize_t RoundToYCC(const MagickRealType value)
{
  if (value <= 0.0)
    return(0);
  if (value >= 1388.0)
    return(1388);
  return((ssize_t) (value+0.5));
}

static inline void ConvertLabToRGB(const double L,const double a,
  const double b,Quantum *red,Quantum *green,Quantum *blue)
{
  double
    X,
    Y,
    Z;

  ConvertLabToXYZ(100.0*L,255.0*(a-0.5),255.0*(b-0.5),&X,&Y,&Z);
  ConvertXYZToRGB(X,Y,Z,red,green,blue);
}

static inline void ConvertxyYToRGB(const double low_x,const double low_y,
  const double cap_Y,Quantum *red,Quantum *green,Quantum *blue)
{
  double
    X,
    Y,
    Z;

  X=cap_Y/low_y*low_x;
  Y=cap_Y;
  Z=cap_Y/low_y*(1.0-low_x-low_y);
  ConvertXYZToRGB(X,Y,Z,red,green,blue);
}

static void ConvertYPbPrToRGB(const double Y,const double Pb,const double Pr,
  Quantum *red,Quantum *green,Quantum *blue)
{
  *red=ClampToQuantum(QuantumRange*(0.99999999999914679361*Y-
    1.2188941887145875e-06*(Pb-0.5)+1.4019995886561440468*(Pr-0.5)));
  *green=ClampToQuantum(QuantumRange*(0.99999975910502514331*Y-
    0.34413567816504303521*(Pb-0.5)-0.71413649331646789076*(Pr-0.5)));
  *blue=ClampToQuantum(QuantumRange*(1.00000124040004623180*Y+
    1.77200006607230409200*(Pb-0.5)+2.1453384174593273e-06*(Pr-0.5)));
}

static void ConvertYCbCrToRGB(const double Y,const double Cb,
  const double Cr,Quantum *red,Quantum *green,Quantum *blue)
{
  ConvertYPbPrToRGB(Y,Cb,Cr,red,green,blue);
}

static void ConvertYDbDrToRGB(const double Y,const double Db,const double Dr,
  Quantum *red,Quantum *green,Quantum *blue)
{
  *red=ClampToQuantum(QuantumRange*(Y+9.2303716147657e-05*(Db-0.5)-
    0.52591263066186533*(Dr-0.5)));
  *green=ClampToQuantum(QuantumRange*(Y-0.12913289889050927*(Db-0.5)+
    0.26789932820759876*(Dr-0.5)));
  *blue=ClampToQuantum(QuantumRange*(Y+0.66467905997895482*(Db-0.5)-
    7.9202543533108e-05*(Dr-0.5)));
}

static void ConvertYIQToRGB(const double Y,const double I,const double Q,
  Quantum *red,Quantum *green,Quantum *blue)
{
  *red=ClampToQuantum(QuantumRange*(Y+0.9562957197589482261*(I-0.5)+
    0.6210244164652610754*(Q-0.5)));
  *green=ClampToQuantum(QuantumRange*(Y-0.2721220993185104464*(I-0.5)-
    0.6473805968256950427*(Q-0.5)));
  *blue=ClampToQuantum(QuantumRange*(Y-1.1069890167364901945*(I-0.5)+
    1.7046149983646481374*(Q-0.5)));
}

static void ConvertYUVToRGB(const double Y,const double U,const double V,
  Quantum *red,Quantum *green,Quantum *blue)
{
  *red=ClampToQuantum(QuantumRange*(Y-3.945707070708279e-05*(U-0.5)+
    1.1398279671717170825*(V-0.5)));
  *green=ClampToQuantum(QuantumRange*(Y-0.3946101641414141437*(U-0.5)-
    0.5805003156565656797*(V-0.5)));
  *blue=ClampToQuantum(QuantumRange*(Y+2.0319996843434342537*(U-0.5)-
    4.813762626262513e-04*(V-0.5)));
}

MagickExport MagickBooleanType TransformRGBImage(Image *image,
  const ColorspaceType colorspace)
{
#define TransformRGBImageTag  "Transform/Image"

  static const float
    YCCMap[1389] =
    {
      0.000000, 0.000720f, 0.001441f, 0.002161f, 0.002882f, 0.003602f,
      0.004323f, 0.005043f, 0.005764f, 0.006484f, 0.007205f, 0.007925f,
      0.008646f, 0.009366f, 0.010086f, 0.010807f, 0.011527f, 0.012248f,
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      0.834294f, 0.835014f, 0.835735f, 0.836455f, 0.837176f, 0.837896f,
      0.838617f, 0.839337f, 0.840058f, 0.840778f, 0.841499f, 0.842219f,
      0.842939f, 0.843660f, 0.844380f, 0.845101f, 0.845821f, 0.846542f,
      0.847262f, 0.847983f, 0.848703f, 0.849424f, 0.850144f, 0.850865f,
      0.851585f, 0.852305f, 0.853026f, 0.853746f, 0.854467f, 0.855187f,
      0.855908f, 0.856628f, 0.857349f, 0.858069f, 0.858790f, 0.859510f,
      0.860231f, 0.860951f, 0.861671f, 0.862392f, 0.863112f, 0.863833f,
      0.864553f, 0.865274f, 0.865994f, 0.866715f, 0.867435f, 0.868156f,
      0.868876f, 0.869597f, 0.870317f, 0.871037f, 0.871758f, 0.872478f,
      0.873199f, 0.873919f, 0.874640f, 0.875360f, 0.876081f, 0.876801f,
      0.877522f, 0.878242f, 0.878963f, 0.879683f, 0.880403f, 0.881124f,
      0.881844f, 0.882565f, 0.883285f, 0.884006f, 0.884726f, 0.885447f,
      0.886167f, 0.886888f, 0.887608f, 0.888329f, 0.889049f, 0.889769f,
      0.890490f, 0.891210f, 0.891931f, 0.892651f, 0.893372f, 0.894092f,
      0.894813f, 0.895533f, 0.896254f, 0.896974f, 0.897695f, 0.898415f,
      0.899135f, 0.899856f, 0.900576f, 0.901297f, 0.902017f, 0.902738f,
      0.903458f, 0.904179f, 0.904899f, 0.905620f, 0.906340f, 0.907061f,
      0.907781f, 0.908501f, 0.909222f, 0.909942f, 0.910663f, 0.911383f,
      0.912104f, 0.912824f, 0.913545f, 0.914265f, 0.914986f, 0.915706f,
      0.916427f, 0.917147f, 0.917867f, 0.918588f, 0.919308f, 0.920029f,
      0.920749f, 0.921470f, 0.922190f, 0.922911f, 0.923631f, 0.924352f,
      0.925072f, 0.925793f, 0.926513f, 0.927233f, 0.927954f, 0.928674f,
      0.929395f, 0.930115f, 0.930836f, 0.931556f, 0.932277f, 0.932997f,
      0.933718f, 0.934438f, 0.935158f, 0.935879f, 0.936599f, 0.937320f,
      0.938040f, 0.938761f, 0.939481f, 0.940202f, 0.940922f, 0.941643f,
      0.942363f, 0.943084f, 0.943804f, 0.944524f, 0.945245f, 0.945965f,
      0.946686f, 0.947406f, 0.948127f, 0.948847f, 0.949568f, 0.950288f,
      0.951009f, 0.951729f, 0.952450f, 0.953170f, 0.953891f, 0.954611f,
      0.955331f, 0.956052f, 0.956772f, 0.957493f, 0.958213f, 0.958934f,
      0.959654f, 0.960375f, 0.961095f, 0.961816f, 0.962536f, 0.963256f,
      0.963977f, 0.964697f, 0.965418f, 0.966138f, 0.966859f, 0.967579f,
      0.968300f, 0.969020f, 0.969741f, 0.970461f, 0.971182f, 0.971902f,
      0.972622f, 0.973343f, 0.974063f, 0.974784f, 0.975504f, 0.976225f,
      0.976945f, 0.977666f, 0.978386f, 0.979107f, 0.979827f, 0.980548f,
      0.981268f, 0.981988f, 0.982709f, 0.983429f, 0.984150f, 0.984870f,
      0.985591f, 0.986311f, 0.987032f, 0.987752f, 0.988473f, 0.989193f,
      0.989914f, 0.990634f, 0.991354f, 0.992075f, 0.992795f, 0.993516f,
      0.994236f, 0.994957f, 0.995677f, 0.996398f, 0.997118f, 0.997839f,
      0.998559f, 0.999280f, 1.000000
    };

  CacheView
    *image_view;

  ExceptionInfo
    *exception;

  MagickBooleanType
    status;

  MagickOffsetType
    progress;

  register ssize_t
    i;

  ssize_t
    y;

  TransformPacket
    *y_map,
    *x_map,
    *z_map;

  assert(image != (Image *) NULL);
  assert(image->signature == MagickSignature);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
  status=MagickTrue;
  progress=0;
  exception=(&image->exception);
  switch (colorspace)
  {
    case CMYKColorspace:
    {
      MagickPixelPacket
        zero;

      /*
        Transform image from CMYK to sRGB.
      */
      if (image->storage_class == PseudoClass)
        {
          if (SyncImage(image) == MagickFalse)
            return(MagickFalse);
          if (SetImageStorageClass(image,DirectClass) == MagickFalse)
            return(MagickFalse);
        }
      GetMagickPixelPacket(image,&zero);
      image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) shared(status) \
        magick_threads(image,image,image->rows,1)
#endif
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        MagickBooleanType
          sync;

        MagickPixelPacket
          pixel;

        register IndexPacket
          *restrict indexes;

        register ssize_t
          x;

        register PixelPacket
          *restrict q;

        if (status == MagickFalse)
          continue;
        q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
          exception);
        if (q == (PixelPacket *) NULL)
          {
            status=MagickFalse;
            continue;
          }
        indexes=GetCacheViewAuthenticIndexQueue(image_view);
        pixel=zero;
        for (x=0; x < (ssize_t) image->columns; x++)
        {
          SetMagickPixelPacket(image,q,indexes+x,&pixel);
          ConvertCMYKToRGB(&pixel);
          SetPixelPacket(image,&pixel,q,indexes+x);
          q++;
        }
        sync=SyncCacheViewAuthenticPixels(image_view,exception);
        if (sync == MagickFalse)
          status=MagickFalse;
      }
      image_view=DestroyCacheView(image_view);
      if (SetImageColorspace(image,sRGBColorspace) == MagickFalse)
        return(MagickFalse);
      return(status);
    }
    case GRAYColorspace:
    case Rec601LumaColorspace:
    case Rec709LumaColorspace:
    {
      /*
        Transform linear RGB to sRGB colorspace.
      */
      if (image->storage_class == PseudoClass)
        {
          if (SyncImage(image) == MagickFalse)
            return(MagickFalse);
          if (SetImageStorageClass(image,DirectClass) == MagickFalse)
            return(MagickFalse);
        }
      if (SetImageColorspace(image,sRGBColorspace) == MagickFalse)
        return(MagickFalse);
      image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) shared(status) \
        magick_threads(image,image,image->rows,1)
#endif
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        MagickBooleanType
          sync;

        register ssize_t
          x;

        register PixelPacket
          *restrict q;

        if (status == MagickFalse)
          continue;
        q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
          exception);
        if (q == (PixelPacket *) NULL)
          {
            status=MagickFalse;
            continue;
          }
        for (x=(ssize_t) image->columns; x != 0; x--)
        {
          MagickRealType
            gray;

          gray=(MagickRealType) GetPixelGray(q);
          if ((image->intensity == Rec601LuminancePixelIntensityMethod) ||
              (image->intensity == Rec709LuminancePixelIntensityMethod))
            gray=EncodePixelGamma(gray);
          SetPixelRed(q,ClampToQuantum(gray));
          SetPixelGreen(q,ClampToQuantum(gray));
          SetPixelBlue(q,ClampToQuantum(gray));
          q++;
        }
        sync=SyncCacheViewAuthenticPixels(image_view,exception);
        if (sync == MagickFalse)
          status=MagickFalse;
      }
      image_view=DestroyCacheView(image_view);
      if (SetImageColorspace(image,sRGBColorspace) == MagickFalse)
        return(MagickFalse);
      return(status);
    }
    case CMYColorspace:
    case HCLColorspace:
    case HCLpColorspace:
    case HSBColorspace:
    case HSIColorspace:
    case HSLColorspace:
    case HSVColorspace:
    case HWBColorspace:
    case LabColorspace:
    case LCHColorspace:
    case LCHabColorspace:
    case LCHuvColorspace:
    case LMSColorspace:
    case LuvColorspace:
    case xyYColorspace:
    case XYZColorspace:
    case YCbCrColorspace:
    case YDbDrColorspace:
    case YIQColorspace:
    case YPbPrColorspace:
    case YUVColorspace:
    {
      /*
        Transform image from source colorspace to sRGB.
      */
      if (image->storage_class == PseudoClass)
        {
          if (SyncImage(image) == MagickFalse)
            return(MagickFalse);
          if (SetImageStorageClass(image,DirectClass) == MagickFalse)
            return(MagickFalse);
        }
      image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) shared(status) \
        magick_threads(image,image,image->rows,1)
#endif
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        MagickBooleanType
          sync;

        register ssize_t
          x;

        register PixelPacket
          *restrict q;

        if (status == MagickFalse)
          continue;
        q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
          exception);
        if (q == (PixelPacket *) NULL)
          {
            status=MagickFalse;
            continue;
          }
        for (x=0; x < (ssize_t) image->columns; x++)
        {
          double
            X,
            Y,
            Z;

          Quantum
            blue,
            green,
            red;

          X=QuantumScale*GetPixelRed(q);
          Y=QuantumScale*GetPixelGreen(q);
          Z=QuantumScale*GetPixelBlue(q);
          switch (colorspace)
          {
            case CMYColorspace:
            {
              ConvertCMYToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case HCLColorspace:
            {
              ConvertHCLToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case HCLpColorspace:
            {
              ConvertHCLpToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case HSBColorspace:
            {
              ConvertHSBToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case HSIColorspace:
            {
              ConvertHSIToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case HSLColorspace:
            {
              ConvertHSLToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case HSVColorspace:
            {
              ConvertHSVToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case HWBColorspace:
            {
              ConvertHWBToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case LabColorspace:
            {
              ConvertLabToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case LCHColorspace:
            case LCHabColorspace:
            {
              ConvertLCHabToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case LCHuvColorspace:
            {
              ConvertLCHuvToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case LMSColorspace:
            {
              ConvertLMSToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case LuvColorspace:
            {
              ConvertLuvToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case xyYColorspace:
            {
              ConvertxyYToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case XYZColorspace:
            {
              ConvertXYZToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case YCbCrColorspace:
            {
              ConvertYCbCrToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case YDbDrColorspace:
            {
              ConvertYDbDrToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case YIQColorspace:
            {
              ConvertYIQToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case YPbPrColorspace:
            {
              ConvertYPbPrToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            case YUVColorspace:
            {
              ConvertYUVToRGB(X,Y,Z,&red,&green,&blue);
              break;
            }
            default:
            {
              red=ClampToQuantum(QuantumRange*X);
              green=ClampToQuantum(QuantumRange*Y);
              blue=ClampToQuantum(QuantumRange*Z);
              break;
            }
          }
          SetPixelRed(q,ClampToQuantum((MagickRealType) red));
          SetPixelGreen(q,ClampToQuantum((MagickRealType) green));
          SetPixelBlue(q,ClampToQuantum((MagickRealType) blue));
          q++;
        }
        sync=SyncCacheViewAuthenticPixels(image_view,exception);
        if (sync == MagickFalse)
          status=MagickFalse;
      }
      image_view=DestroyCacheView(image_view);
      if (SetImageColorspace(image,sRGBColorspace) == MagickFalse)
        return(MagickFalse);
      return(status);
    }
    case LogColorspace:
    {
      const char
        *value;

      double
        black,
        density,
        film_gamma,
        gamma,
        reference_black,
        reference_white;

      Quantum
        *logmap;

      /*
        Transform Log to sRGB colorspace.
      */
      density=DisplayGamma;
      gamma=DisplayGamma;
      value=GetImageProperty(image,"gamma");
      if (value != (const char *) NULL)
        gamma=PerceptibleReciprocal(StringToDouble(value,(char **) NULL));
      film_gamma=FilmGamma;
      value=GetImageProperty(image,"film-gamma");
      if (value != (const char *) NULL)
        film_gamma=StringToDouble(value,(char **) NULL);
      reference_black=ReferenceBlack;
      value=GetImageProperty(image,"reference-black");
      if (value != (const char *) NULL)
        reference_black=StringToDouble(value,(char **) NULL);
      reference_white=ReferenceWhite;
      value=GetImageProperty(image,"reference-white");
      if (value != (const char *) NULL)
        reference_white=StringToDouble(value,(char **) NULL);
      logmap=(Quantum *) AcquireQuantumMemory((size_t) MaxMap+1UL,
        sizeof(*logmap));
      if (logmap == (Quantum *) NULL)
        ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed",
          image->filename);
      black=pow(10.0,(reference_black-reference_white)*(gamma/density)*0.002/
        film_gamma);
      for (i=0; i <= (ssize_t) (reference_black*MaxMap/1024.0); i++)
        logmap[i]=(Quantum) 0;
      for ( ; i < (ssize_t) (reference_white*MaxMap/1024.0); i++)
        logmap[i]=ClampToQuantum((MagickRealType) QuantumRange/(1.0-black)*
          (pow(10.0,(1024.0*i/MaxMap-reference_white)*(gamma/density)*0.002/
          film_gamma)-black));
      for ( ; i <= (ssize_t) MaxMap; i++)
        logmap[i]=QuantumRange;
      if (image->storage_class == PseudoClass)
        {
          if (SyncImage(image) == MagickFalse)
            return(MagickFalse);
          if (SetImageStorageClass(image,DirectClass) == MagickFalse)
            return(MagickFalse);
        }
      image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) shared(status) \
        magick_threads(image,image,image->rows,1)
#endif
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        MagickBooleanType
          sync;

        register ssize_t
          x;

        register PixelPacket
          *restrict q;

        if (status == MagickFalse)
          continue;
        q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
          exception);
        if (q == (PixelPacket *) NULL)
          {
            status=MagickFalse;
            continue;
          }
        for (x=(ssize_t) image->columns; x != 0; x--)
        {
          Quantum
            blue,
            green,
            red;

          red=ClampToQuantum(EncodePixelGamma((MagickRealType)
            logmap[ScaleQuantumToMap(GetPixelRed(q))]));
          green=ClampToQuantum(EncodePixelGamma((MagickRealType)
            logmap[ScaleQuantumToMap(GetPixelGreen(q))]));
          blue=ClampToQuantum(EncodePixelGamma((MagickRealType)
            logmap[ScaleQuantumToMap(GetPixelBlue(q))]));
          SetPixelRed(q,red);
          SetPixelGreen(q,green);
          SetPixelBlue(q,blue);
          q++;
        }
        sync=SyncCacheViewAuthenticPixels(image_view,exception);
        if (sync == MagickFalse)
          status=MagickFalse;
      }
      image_view=DestroyCacheView(image_view);
      logmap=(Quantum *) RelinquishMagickMemory(logmap);
      if (SetImageColorspace(image,sRGBColorspace) == MagickFalse)
        return(MagickFalse);
      return(status);
    }
    case RGBColorspace:
    case scRGBColorspace:
    {
      /*
        Transform linear RGB to sRGB colorspace.
      */
      if (image->storage_class == PseudoClass)
        {
          if (SyncImage(image) == MagickFalse)
            return(MagickFalse);
          if (SetImageStorageClass(image,DirectClass) == MagickFalse)
            return(MagickFalse);
        }
      image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) shared(status) \
        magick_threads(image,image,image->rows,1)
#endif
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        MagickBooleanType
          sync;

        register ssize_t
          x;

        register PixelPacket
          *restrict q;

        if (status == MagickFalse)
          continue;
        q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
          exception);
        if (q == (PixelPacket *) NULL)
          {
            status=MagickFalse;
            continue;
          }
        for (x=(ssize_t) image->columns; x != 0; x--)
        {
          Quantum
            blue,
            green,
            red;

          red=ClampToQuantum(EncodePixelGamma((MagickRealType) GetPixelRed(q)));
          green=ClampToQuantum(EncodePixelGamma((MagickRealType)
            GetPixelGreen(q)));
          blue=ClampToQuantum(EncodePixelGamma((MagickRealType)
            GetPixelBlue(q)));
          SetPixelRed(q,red);
          SetPixelGreen(q,green);
          SetPixelBlue(q,blue);
          q++;
        }
        sync=SyncCacheViewAuthenticPixels(image_view,exception);
        if (sync == MagickFalse)
          status=MagickFalse;
      }
      image_view=DestroyCacheView(image_view);
      if (SetImageColorspace(image,sRGBColorspace) == MagickFalse)
        return(MagickFalse);
      return(status);
    }
    default:
      break;
  }
  /*
    Allocate the tables.
  */
  x_map=(TransformPacket *) AcquireQuantumMemory((size_t) MaxMap+1UL,
    sizeof(*x_map));
  y_map=(TransformPacket *) AcquireQuantumMemory((size_t) MaxMap+1UL,
    sizeof(*y_map));
  z_map=(TransformPacket *) AcquireQuantumMemory((size_t) MaxMap+1UL,
    sizeof(*z_map));
  if ((x_map == (TransformPacket *) NULL) ||
      (y_map == (TransformPacket *) NULL) ||
      (z_map == (TransformPacket *) NULL))
    {
      if (z_map != (TransformPacket *) NULL)
        z_map=(TransformPacket *) RelinquishMagickMemory(z_map);
      if (y_map != (TransformPacket *) NULL)
        y_map=(TransformPacket *) RelinquishMagickMemory(y_map);
      if (x_map != (TransformPacket *) NULL)
        x_map=(TransformPacket *) RelinquishMagickMemory(x_map);
      ThrowBinaryException(ResourceLimitError,"MemoryAllocationFailed",
        image->filename);
    }
  switch (colorspace)
  {
    case OHTAColorspace:
    {
      /*
        Initialize OHTA tables:

          R = I1+1.00000*I2-0.66668*I3
          G = I1+0.00000*I2+1.33333*I3
          B = I1-1.00000*I2-0.66668*I3

        I and Q, normally -0.5 through 0.5, must be normalized to the range 0
        through QuantumRange.
      */
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) \
        magick_threads(image,image,1,1)
#endif
      for (i=0; i <= (ssize_t) MaxMap; i++)
      {
        x_map[i].x=(1.0*(double) i);
        y_map[i].x=(0.5*1.00000*(2.0*(double) i-MaxMap));
        z_map[i].x=(-0.5*0.66668*(2.0*(double) i-MaxMap));
        x_map[i].y=(1.0*(double) i);
        y_map[i].y=(0.5*0.00000*(2.0*(double) i-MaxMap));
        z_map[i].y=(0.5*1.33333*(2.0*(double) i-MaxMap));
        x_map[i].z=(1.0*(double) i);
        y_map[i].z=(-0.5*1.00000*(2.0*(double) i-MaxMap));
        z_map[i].z=(-0.5*0.66668*(2.0*(double) i-MaxMap));
      }
      break;
    }
    case Rec601YCbCrColorspace:
    {
      /*
        Initialize YCbCr tables:

          R = Y            +1.402000*Cr
          G = Y-0.344136*Cb-0.714136*Cr
          B = Y+1.772000*Cb

        Cb and Cr, normally -0.5 through 0.5, must be normalized to the range 0
        through QuantumRange.
      */
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) \
        magick_threads(image,image,1,1)
#endif
      for (i=0; i <= (ssize_t) MaxMap; i++)
      {
        x_map[i].x=0.99999999999914679361*(double) i;
        y_map[i].x=0.5*(-1.2188941887145875e-06)*(2.00*(double) i-MaxMap);
        z_map[i].x=0.5*1.4019995886561440468*(2.00*(double) i-MaxMap);
        x_map[i].y=0.99999975910502514331*(double) i;
        y_map[i].y=0.5*(-0.34413567816504303521)*(2.00*(double) i-MaxMap);
        z_map[i].y=0.5*(-0.71413649331646789076)*(2.00*(double) i-MaxMap);
        x_map[i].z=1.00000124040004623180*(double) i;
        y_map[i].z=0.5*1.77200006607230409200*(2.00*(double) i-MaxMap);
        z_map[i].z=0.5*2.1453384174593273e-06*(2.00*(double) i-MaxMap);
      }
      break;
    }
    case Rec709YCbCrColorspace:
    {
      /*
        Initialize YCbCr tables:

          R = Y            +1.574800*Cr
          G = Y-0.187324*Cb-0.468124*Cr
          B = Y+1.855600*Cb

        Cb and Cr, normally -0.5 through 0.5, must be normalized to the range 0
        through QuantumRange.
      */
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) \
        magick_threads(image,image,1,1)
#endif
      for (i=0; i <= (ssize_t) MaxMap; i++)
      {
        x_map[i].x=(MagickRealType) (1.0*(double) i);
        y_map[i].x=(MagickRealType) (0.5*0.000000*(2.0*(double) i-MaxMap));
        z_map[i].x=(MagickRealType) (0.5*1.574800*(2.0*(double) i-MaxMap));
        x_map[i].y=(MagickRealType) (1.0*(double) i);
        y_map[i].y=(MagickRealType) (0.5*(-0.187324)*(2.0*(double) i-MaxMap));
        z_map[i].y=(MagickRealType) (0.5*(-0.468124)*(2.0*(double) i-MaxMap));
        x_map[i].z=(MagickRealType) (1.0*(double) i);
        y_map[i].z=(MagickRealType) (0.5*1.855600*(2.0*(double) i-MaxMap));
        z_map[i].z=(MagickRealType) (0.5*0.000000*(2.0*(double) i-MaxMap));
      }
      break;
    }
    case YCCColorspace:
    {
      /*
        Initialize YCC tables:

          R = Y            +1.340762*C2
          G = Y-0.317038*C1-0.682243*C2
          B = Y+1.632639*C1

        YCC is scaled by 1.3584.  C1 zero is 156 and C2 is at 137.
      */
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) \
        magick_threads(image,image,1,1)
#endif
      for (i=0; i <= (ssize_t) MaxMap; i++)
      {
        x_map[i].x=(MagickRealType) (1.3584000*(double) i);
        y_map[i].x=(MagickRealType) (0.0000000);
        z_map[i].x=(MagickRealType) (1.8215000*((double) i-(MagickRealType)
          ScaleQuantumToMap(ScaleCharToQuantum(137))));
        x_map[i].y=(MagickRealType) (1.3584000*(double) i);
        y_map[i].y=(MagickRealType) ((-0.4302726)*((double) i-(MagickRealType)
          ScaleQuantumToMap(ScaleCharToQuantum(156))));
        z_map[i].y=(MagickRealType) ((-0.9271435)*((double) i-(MagickRealType)
          ScaleQuantumToMap(ScaleCharToQuantum(137))));
        x_map[i].z=(MagickRealType) (1.3584000*(double) i);
        y_map[i].z=(MagickRealType) (2.2179000*((double) i-(MagickRealType)
          ScaleQuantumToMap(ScaleCharToQuantum(156))));
        z_map[i].z=(MagickRealType) (0.0000000);
      }
      break;
    }
    default:
    {
      /*
        Linear conversion tables.
      */
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) \
        magick_threads(image,image,1,1)
#endif
      for (i=0; i <= (ssize_t) MaxMap; i++)
      {
        x_map[i].x=(MagickRealType) (1.0*(double) i);
        y_map[i].x=(MagickRealType) 0.0;
        z_map[i].x=(MagickRealType) 0.0;
        x_map[i].y=(MagickRealType) 0.0;
        y_map[i].y=(MagickRealType) (1.0*(double) i);
        z_map[i].y=(MagickRealType) 0.0;
        x_map[i].z=(MagickRealType) 0.0;
        y_map[i].z=(MagickRealType) 0.0;
        z_map[i].z=(MagickRealType) (1.0*(double) i);
      }
      break;
    }
  }
  /*
    Convert to sRGB.
  */
  switch (image->storage_class)
  {
    case DirectClass:
    default:
    {
      /*
        Convert DirectClass image.
      */
      image_view=AcquireAuthenticCacheView(image,exception);
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) shared(status) \
        magick_threads(image,image,image->rows,1)
#endif
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        MagickBooleanType
          sync;

        MagickPixelPacket
          pixel;

        register ssize_t
          x;

        register PixelPacket
          *restrict q;

        if (status == MagickFalse)
          continue;
        q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
          exception);
        if (q == (PixelPacket *) NULL)
          {
            status=MagickFalse;
            continue;
          }
        for (x=0; x < (ssize_t) image->columns; x++)
        {
          register size_t
            blue,
            green,
            red;

          red=ScaleQuantumToMap(GetPixelRed(q));
          green=ScaleQuantumToMap(GetPixelGreen(q));
          blue=ScaleQuantumToMap(GetPixelBlue(q));
          pixel.red=x_map[red].x+y_map[green].x+z_map[blue].x;
          pixel.green=x_map[red].y+y_map[green].y+z_map[blue].y;
          pixel.blue=x_map[red].z+y_map[green].z+z_map[blue].z;
          if (colorspace == YCCColorspace)
            {
              pixel.red=QuantumRange*YCCMap[RoundToYCC(1024.0*pixel.red/
                (double) MaxMap)];
              pixel.green=QuantumRange*YCCMap[RoundToYCC(1024.0*pixel.green/
                (double) MaxMap)];
              pixel.blue=QuantumRange*YCCMap[RoundToYCC(1024.0*pixel.blue/
                (double) MaxMap)];
            }
          else
            {
              pixel.red=(MagickRealType) ScaleMapToQuantum(pixel.red);
              pixel.green=(MagickRealType) ScaleMapToQuantum(pixel.green);
              pixel.blue=(MagickRealType) ScaleMapToQuantum(pixel.blue);
            }
          SetPixelRed(q,ClampToQuantum(pixel.red));
          SetPixelGreen(q,ClampToQuantum(pixel.green));
          SetPixelBlue(q,ClampToQuantum(pixel.blue));
          q++;
        }
        sync=SyncCacheViewAuthenticPixels(image_view,exception);
        if (sync == MagickFalse)
          status=MagickFalse;
        if (image->progress_monitor != (MagickProgressMonitor) NULL)
          {
            MagickBooleanType
              proceed;

#if defined(MAGICKCORE_OPENMP_SUPPORT)
            #pragma omp critical (MagickCore_TransformRGBImage)
#endif
            proceed=SetImageProgress(image,TransformRGBImageTag,progress++,
              image->rows);
            if (proceed == MagickFalse)
              status=MagickFalse;
          }
      }
      image_view=DestroyCacheView(image_view);
      break;
    }
    case PseudoClass:
    {
      /*
        Convert PseudoClass image.
      */
#if defined(MAGICKCORE_OPENMP_SUPPORT)
      #pragma omp parallel for schedule(static,4) shared(status) \
        magick_threads(image,image,1,1)
#endif
      for (i=0; i < (ssize_t) image->colors; i++)
      {
        MagickPixelPacket
          pixel;

        register size_t
          blue,
          green,
          red;

        red=ScaleQuantumToMap(image->colormap[i].red);
        green=ScaleQuantumToMap(image->colormap[i].green);
        blue=ScaleQuantumToMap(image->colormap[i].blue);
        pixel.red=x_map[red].x+y_map[green].x+z_map[blue].x;
        pixel.green=x_map[red].y+y_map[green].y+z_map[blue].y;
        pixel.blue=x_map[red].z+y_map[green].z+z_map[blue].z;
        if (colorspace == YCCColorspace)
          {
            pixel.red=QuantumRange*YCCMap[RoundToYCC(1024.0*pixel.red/
              (double) MaxMap)];
            pixel.green=QuantumRange*YCCMap[RoundToYCC(1024.0*pixel.green/
              (double) MaxMap)];
            pixel.blue=QuantumRange*YCCMap[RoundToYCC(1024.0*pixel.blue/
              (double) MaxMap)];
          }
        else
          {
            pixel.red=(MagickRealType) ScaleMapToQuantum(pixel.red);
            pixel.green=(MagickRealType) ScaleMapToQuantum(pixel.green);
            pixel.blue=(MagickRealType) ScaleMapToQuantum(pixel.blue);
          }
        image->colormap[i].red=ClampToQuantum(pixel.red);
        image->colormap[i].green=ClampToQuantum(pixel.green);
        image->colormap[i].blue=ClampToQuantum(pixel.blue);
      }
      (void) SyncImage(image);
      break;
    }
  }
  /*
    Relinquish resources.
  */
  z_map=(TransformPacket *) RelinquishMagickMemory(z_map);
  y_map=(TransformPacket *) RelinquishMagickMemory(y_map);
  x_map=(TransformPacket *) RelinquishMagickMemory(x_map);
  if (SetImageColorspace(image,sRGBColorspace) == MagickFalse)
    return(MagickFalse);
  return(MagickTrue);
}
