- Modifications to compile ImageMagick
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Santi Noreña
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83522c16c3
3442 changed files with 57 additions and 412926 deletions
393
ImageMagick/coders/histogram.c
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393
ImageMagick/coders/histogram.c
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% H H IIIII SSSSS TTTTT OOO GGGG RRRR AAA M M %
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% H H I SS T O O G R R A A MM MM %
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% HHHHH I SSS T O O G GG RRRR AAAAA M M M %
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% H H I SS T O O G G R R A A M M %
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% H H IIIII SSSSS T OOO GGG R R A A M M %
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% %
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% %
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% Write A Histogram Image. %
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% %
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% Software Design %
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% John Cristy %
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% July 1992 %
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% %
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% %
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% Copyright 1999-2013 ImageMagick Studio LLC, a non-profit organization %
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% dedicated to making software imaging solutions freely available. %
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% %
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% You may not use this file except in compliance with the License. You may %
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% obtain a copy of the License at %
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% %
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% http://www.imagemagick.org/script/license.php %
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% %
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% Unless required by applicable law or agreed to in writing, software %
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% distributed under the License is distributed on an "AS IS" BASIS, %
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% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
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% See the License for the specific language governing permissions and %
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% limitations under the License. %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%
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*/
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/*
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Include declarations.
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*/
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#include "magick/studio.h"
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#include "magick/property.h"
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#include "magick/blob.h"
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#include "magick/blob-private.h"
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#include "magick/cache.h"
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#include "magick/color.h"
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#include "magick/color-private.h"
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#include "magick/constitute.h"
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#include "magick/exception.h"
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#include "magick/exception-private.h"
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#include "magick/geometry.h"
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#include "magick/histogram.h"
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#include "magick/image-private.h"
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#include "magick/magick.h"
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#include "magick/memory_.h"
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#include "magick/monitor.h"
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#include "magick/monitor-private.h"
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#include "magick/option.h"
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#include "magick/pixel-accessor.h"
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#include "magick/quantum-private.h"
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#include "magick/resource_.h"
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#include "magick/static.h"
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#include "magick/statistic.h"
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#include "magick/string_.h"
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#include "magick/module.h"
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#include "magick/token.h"
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#include "magick/utility.h"
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/*
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Forward declarations.
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*/
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static MagickBooleanType
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WriteHISTOGRAMImage(const ImageInfo *,Image *);
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% R e g i s t e r H I S T O G R A M I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% RegisterHISTOGRAMImage() adds attributes for the Histogram image format
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% to the list of supported formats. The attributes include the image format
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% tag, a method to read and/or write the format, whether the format
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% supports the saving of more than one frame to the same file or blob,
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% whether the format supports native in-memory I/O, and a brief
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% description of the format.
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%
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% The format of the RegisterHISTOGRAMImage method is:
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%
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% size_t RegisterHISTOGRAMImage(void)
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%
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*/
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ModuleExport size_t RegisterHISTOGRAMImage(void)
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{
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MagickInfo
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*entry;
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entry=SetMagickInfo("HISTOGRAM");
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entry->encoder=(EncodeImageHandler *) WriteHISTOGRAMImage;
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entry->adjoin=MagickFalse;
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entry->format_type=ImplicitFormatType;
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entry->description=ConstantString("Histogram of the image");
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entry->module=ConstantString("HISTOGRAM");
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(void) RegisterMagickInfo(entry);
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return(MagickImageCoderSignature);
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% U n r e g i s t e r H I S T O G R A M I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% UnregisterHISTOGRAMImage() removes format registrations made by the
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% HISTOGRAM module from the list of supported formats.
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%
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% The format of the UnregisterHISTOGRAMImage method is:
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%
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% UnregisterHISTOGRAMImage(void)
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%
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*/
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ModuleExport void UnregisterHISTOGRAMImage(void)
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{
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(void) UnregisterMagickInfo("HISTOGRAM");
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% W r i t e H I S T O G R A M I m a g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% WriteHISTOGRAMImage() writes an image to a file in Histogram format.
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% The image shows a histogram of the color (or gray) values in the image. The
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% image consists of three overlaid histograms: a red one for the red channel,
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% a green one for the green channel, and a blue one for the blue channel. The
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% image comment contains a list of unique pixel values and the number of times
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% each occurs in the image.
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%
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% This method is strongly based on a similar one written by
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% muquit@warm.semcor.com which in turn is based on ppmhistmap of netpbm.
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%
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% The format of the WriteHISTOGRAMImage method is:
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%
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% MagickBooleanType WriteHISTOGRAMImage(const ImageInfo *image_info,
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% Image *image)
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%
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% A description of each parameter follows.
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%
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% o image_info: the image info.
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%
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% o image: The image.
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%
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*/
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static inline size_t MagickMax(const size_t x,const size_t y)
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{
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if (x > y)
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return(x);
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return(y);
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}
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static MagickBooleanType WriteHISTOGRAMImage(const ImageInfo *image_info,
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Image *image)
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{
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#define HistogramDensity "256x200"
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ChannelType
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channel;
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char
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filename[MaxTextExtent];
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const char
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*option;
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ExceptionInfo
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*exception;
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Image
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*histogram_image;
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ImageInfo
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*write_info;
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MagickBooleanType
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status;
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MagickPixelPacket
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*histogram;
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MagickRealType
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maximum,
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scale;
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RectangleInfo
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geometry;
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register const PixelPacket
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*p;
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register PixelPacket
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*q,
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*r;
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register ssize_t
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x;
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size_t
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length;
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ssize_t
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y;
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/*
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Allocate histogram image.
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*/
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assert(image_info != (const ImageInfo *) NULL);
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assert(image_info->signature == MagickSignature);
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assert(image != (Image *) NULL);
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assert(image->signature == MagickSignature);
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if (image->debug != MagickFalse)
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(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
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image_info->filename);
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SetGeometry(image,&geometry);
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if (image_info->density == (char *) NULL)
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(void) ParseAbsoluteGeometry(HistogramDensity,&geometry);
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else
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(void) ParseAbsoluteGeometry(image_info->density,&geometry);
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histogram_image=CloneImage(image,geometry.width,geometry.height,MagickTrue,
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&image->exception);
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if (histogram_image == (Image *) NULL)
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ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
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(void) SetImageStorageClass(histogram_image,DirectClass);
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/*
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Allocate histogram count arrays.
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*/
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length=MagickMax((size_t) ScaleQuantumToChar(QuantumRange)+1UL,
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histogram_image->columns);
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histogram=(MagickPixelPacket *) AcquireQuantumMemory(length,
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sizeof(*histogram));
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if (histogram == (MagickPixelPacket *) NULL)
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{
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histogram_image=DestroyImage(histogram_image);
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ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
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}
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/*
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Initialize histogram count arrays.
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*/
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channel=image_info->channel;
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(void) ResetMagickMemory(histogram,0,length*sizeof(*histogram));
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for (y=0; y < (ssize_t) image->rows; y++)
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{
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p=GetVirtualPixels(image,0,y,image->columns,1,&image->exception);
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if (p == (const PixelPacket *) NULL)
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break;
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for (x=0; x < (ssize_t) image->columns; x++)
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{
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if ((channel & RedChannel) != 0)
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histogram[ScaleQuantumToChar(GetPixelRed(p))].red++;
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if ((channel & GreenChannel) != 0)
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histogram[ScaleQuantumToChar(GetPixelGreen(p))].green++;
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if ((channel & BlueChannel) != 0)
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histogram[ScaleQuantumToChar(GetPixelBlue(p))].blue++;
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p++;
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}
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}
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maximum=histogram[0].red;
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for (x=0; x < (ssize_t) histogram_image->columns; x++)
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{
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if (((channel & RedChannel) != 0) && (maximum < histogram[x].red))
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maximum=histogram[x].red;
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if (((channel & GreenChannel) != 0) && (maximum < histogram[x].green))
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maximum=histogram[x].green;
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if (((channel & BlueChannel) != 0) && (maximum < histogram[x].blue))
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maximum=histogram[x].blue;
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}
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scale=(MagickRealType) histogram_image->rows/maximum;
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/*
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Initialize histogram image.
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*/
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exception=(&image->exception);
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(void) QueryColorDatabase("#000",&histogram_image->background_color,
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&image->exception);
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(void) SetImageBackgroundColor(histogram_image);
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for (x=0; x < (ssize_t) histogram_image->columns; x++)
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{
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q=GetAuthenticPixels(histogram_image,x,0,1,histogram_image->rows,exception);
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if (q == (PixelPacket *) NULL)
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break;
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if ((channel & RedChannel) != 0)
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{
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y=(ssize_t) ceil(histogram_image->rows-scale*histogram[x].red-0.5);
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r=q+y;
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for ( ; y < (ssize_t) histogram_image->rows; y++)
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{
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SetPixelRed(r,QuantumRange);
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r++;
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}
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}
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if ((channel & GreenChannel) != 0)
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{
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y=(ssize_t) ceil(histogram_image->rows-scale*histogram[x].green-0.5);
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r=q+y;
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for ( ; y < (ssize_t) histogram_image->rows; y++)
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{
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SetPixelGreen(r,QuantumRange);
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r++;
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}
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}
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if ((channel & BlueChannel) != 0)
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{
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y=(ssize_t) ceil(histogram_image->rows-scale*histogram[x].blue-0.5);
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r=q+y;
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for ( ; y < (ssize_t) histogram_image->rows; y++)
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{
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SetPixelBlue(r,QuantumRange);
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r++;
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}
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}
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if (SyncAuthenticPixels(histogram_image,exception) == MagickFalse)
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break;
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status=SetImageProgress(image,SaveImageTag,y,histogram_image->rows);
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if (status == MagickFalse)
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break;
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}
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/*
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Relinquish resources.
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*/
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histogram=(MagickPixelPacket *) RelinquishMagickMemory(histogram);
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option=GetImageOption(image_info,"histogram:unique-colors");
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if ((option == (const char *) NULL) || (IsMagickTrue(option) != MagickFalse))
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{
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FILE
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*file;
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int
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unique_file;
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/*
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Add a unique colors as an image comment.
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*/
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file=(FILE *) NULL;
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unique_file=AcquireUniqueFileResource(filename);
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if (unique_file != -1)
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file=fdopen(unique_file,"wb");
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if ((unique_file != -1) && (file != (FILE *) NULL))
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{
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char
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*property;
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(void) GetNumberColors(image,file,&image->exception);
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(void) fclose(file);
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property=FileToString(filename,~0UL,&image->exception);
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if (property != (char *) NULL)
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{
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(void) SetImageProperty(histogram_image,"comment",property);
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property=DestroyString(property);
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}
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}
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(void) RelinquishUniqueFileResource(filename);
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}
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/*
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Write Histogram image.
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*/
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(void) CopyMagickString(histogram_image->filename,image_info->filename,
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MaxTextExtent);
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write_info=CloneImageInfo(image_info);
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(void) SetImageInfo(write_info,1,&image->exception);
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if (LocaleCompare(write_info->magick,"HISTOGRAM") == 0)
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(void) FormatLocaleString(histogram_image->filename,MaxTextExtent,
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"miff:%s",write_info->filename);
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status=WriteImage(write_info,histogram_image);
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histogram_image=DestroyImage(histogram_image);
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write_info=DestroyImageInfo(write_info);
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return(status);
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}
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