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identify.c
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/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% IIIII DDDD EEEEE N N TTTTT IIIII FFFFF Y Y %
% I D D E NN N T I F Y Y %
% I D D EEE N N N T I FFF Y %
% I D D E N NN T I F Y %
% IIIII DDDD EEEEE N N T IIIII F Y %
% %
% %
% Identify an Image Format and Characteristics. %
% %
% Software Design %
% Cristy %
% September 1994 %
% %
% %
% Copyright 1999-2016 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. %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% Identify describes the format and characteristics of one or more image
% files. It will also report if an image is incomplete or corrupt.
%
%
*/
/*
Include declarations.
*/
#include "MagickCore/studio.h"
#include "MagickCore/annotate.h"
#include "MagickCore/artifact.h"
#include "MagickCore/attribute.h"
#include "MagickCore/blob.h"
#include "MagickCore/cache.h"
#include "MagickCore/client.h"
#include "MagickCore/coder.h"
#include "MagickCore/color.h"
#include "MagickCore/configure.h"
#include "MagickCore/constitute.h"
#include "MagickCore/decorate.h"
#include "MagickCore/delegate.h"
#include "MagickCore/draw.h"
#include "MagickCore/effect.h"
#include "MagickCore/exception.h"
#include "MagickCore/exception-private.h"
#include "MagickCore/feature.h"
#include "MagickCore/gem.h"
#include "MagickCore/geometry.h"
#include "MagickCore/histogram.h"
#include "MagickCore/identify.h"
#include "MagickCore/image.h"
#include "MagickCore/image-private.h"
#include "MagickCore/list.h"
#include "MagickCore/locale_.h"
#include "MagickCore/log.h"
#include "MagickCore/magic.h"
#include "MagickCore/magick.h"
#include "MagickCore/memory_.h"
#include "MagickCore/module.h"
#include "MagickCore/monitor.h"
#include "MagickCore/montage.h"
#include "MagickCore/option.h"
#include "MagickCore/pixel-accessor.h"
#include "MagickCore/prepress.h"
#include "MagickCore/profile.h"
#include "MagickCore/property.h"
#include "MagickCore/quantize.h"
#include "MagickCore/quantum.h"
#include "MagickCore/random_.h"
#include "MagickCore/registry.h"
#include "MagickCore/resize.h"
#include "MagickCore/resource_.h"
#include "MagickCore/signature.h"
#include "MagickCore/statistic.h"
#include "MagickCore/string_.h"
#include "MagickCore/string-private.h"
#include "MagickCore/timer.h"
#include "MagickCore/token.h"
#include "MagickCore/utility.h"
#include "MagickCore/utility-private.h"
#include "MagickCore/version.h"
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% I d e n t i f y I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% IdentifyImage() identifies an image by printing its attributes to the file.
% Attributes include the image width, height, size, and others.
%
% The format of the IdentifyImage method is:
%
% MagickBooleanType IdentifyImage(Image *image,FILE *file,
% const MagickBooleanType verbose,ExceptionInfo *exception)
%
% A description of each parameter follows:
%
% o image: the image.
%
% o file: the file, typically stdout.
%
% o verbose: A value other than zero prints more detailed information
% about the image.
%
% o exception: return any errors or warnings in this structure.
%
*/
static ChannelStatistics *GetLocationStatistics(const Image *image,
const StatisticType type,ExceptionInfo *exception)
{
ChannelStatistics
*channel_statistics;
register ssize_t
i;
ssize_t
y;
assert(image != (Image *) NULL);
assert(image->signature == MagickCoreSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
channel_statistics=(ChannelStatistics *) AcquireQuantumMemory(
MaxPixelChannels+1,sizeof(*channel_statistics));
if (channel_statistics == (ChannelStatistics *) NULL)
ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
(void) ResetMagickMemory(channel_statistics,0,(MaxPixelChannels+1)*
sizeof(*channel_statistics));
for (i=0; i <= (ssize_t) MaxPixelChannels; i++)
{
switch (type)
{
case MaximumStatistic:
default:
{
channel_statistics[i].maxima=(-MagickMaximumValue);
break;
}
case MinimumStatistic:
{
channel_statistics[i].minima=MagickMaximumValue;
break;
}
}
}
for (y=0; y < (ssize_t) image->rows; y++)
{
register const Quantum
*magick_restrict p;
register ssize_t
x;
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
if (p == (const Quantum *) NULL)
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
register ssize_t
i;
if (GetPixelReadMask(image,p) == 0)
{
p+=GetPixelChannels(image);
continue;
}
for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
{
PixelChannel channel=GetPixelChannelChannel(image,i);
PixelTrait traits=GetPixelChannelTraits(image,channel);
if (traits == UndefinedPixelTrait)
continue;
switch (type)
{
case MaximumStatistic:
default:
{
if ((double) p[i] > channel_statistics[channel].maxima)
channel_statistics[channel].maxima=(double) p[i];
break;
}
case MinimumStatistic:
{
if ((double) p[i] < channel_statistics[channel].minima)
channel_statistics[channel].minima=(double) p[i];
break;
}
}
}
p+=GetPixelChannels(image);
}
}
return(channel_statistics);
}
static ssize_t PrintChannelFeatures(FILE *file,const PixelChannel channel,
const char *name,const ChannelFeatures *channel_features)
{
#define PrintFeature(feature) \
GetMagickPrecision(),(feature)[0], \
GetMagickPrecision(),(feature)[1], \
GetMagickPrecision(),(feature)[2], \
GetMagickPrecision(),(feature)[3], \
GetMagickPrecision(),((feature)[0]+(feature)[1]+(feature)[2]+(feature)[3])/4.0 \
#define FeaturesFormat " %s:\n" \
" Angular Second Moment:\n" \
" %.*g, %.*g, %.*g, %.*g, %.*g\n" \
" Contrast:\n" \
" %.*g, %.*g, %.*g, %.*g, %.*g\n" \
" Correlation:\n" \
" %.*g, %.*g, %.*g, %.*g, %.*g\n" \
" Sum of Squares Variance:\n" \
" %.*g, %.*g, %.*g, %.*g, %.*g\n" \
" Inverse Difference Moment:\n" \
" %.*g, %.*g, %.*g, %.*g, %.*g\n" \
" Sum Average:\n" \
" %.*g, %.*g, %.*g, %.*g, %.*g\n" \
" Sum Variance:\n" \
" %.*g, %.*g, %.*g, %.*g, %.*g\n" \
" Sum Entropy:\n" \
" %.*g, %.*g, %.*g, %.*g, %.*g\n" \
" Entropy:\n" \
" %.*g, %.*g, %.*g, %.*g, %.*g\n" \
" Difference Variance:\n" \
" %.*g, %.*g, %.*g, %.*g, %.*g\n" \
" Difference Entropy:\n" \
" %.*g, %.*g, %.*g, %.*g, %.*g\n" \
" Information Measure of Correlation 1:\n" \
" %.*g, %.*g, %.*g, %.*g, %.*g\n" \
" Information Measure of Correlation 2:\n" \
" %.*g, %.*g, %.*g, %.*g, %.*g\n" \
" Maximum Correlation Coefficient:\n" \
" %.*g, %.*g, %.*g, %.*g, %.*g\n"
ssize_t
n;
n=FormatLocaleFile(file,FeaturesFormat,name,
PrintFeature(channel_features[channel].angular_second_moment),
PrintFeature(channel_features[channel].contrast),
PrintFeature(channel_features[channel].correlation),
PrintFeature(channel_features[channel].variance_sum_of_squares),
PrintFeature(channel_features[channel].inverse_difference_moment),
PrintFeature(channel_features[channel].sum_average),
PrintFeature(channel_features[channel].sum_variance),
PrintFeature(channel_features[channel].sum_entropy),
PrintFeature(channel_features[channel].entropy),
PrintFeature(channel_features[channel].difference_variance),
PrintFeature(channel_features[channel].difference_entropy),
PrintFeature(channel_features[channel].measure_of_correlation_1),
PrintFeature(channel_features[channel].measure_of_correlation_2),
PrintFeature(channel_features[channel].maximum_correlation_coefficient));
return(n);
}
static ssize_t PrintChannelLocations(FILE *file,const Image *image,
const PixelChannel channel,const char *name,const StatisticType type,
const size_t max_locations,const ChannelStatistics *channel_statistics)
{
double
target;
ExceptionInfo
*exception;
ssize_t
n,
y;
switch (type)
{
case MaximumStatistic:
default:
{
target=channel_statistics[channel].maxima;
break;
}
case MinimumStatistic:
{
target=channel_statistics[channel].minima;
break;
}
}
(void) FormatLocaleFile(file," %s: %.*g (%.*g)",name,GetMagickPrecision(),
target,GetMagickPrecision(),QuantumScale*target);
exception=AcquireExceptionInfo();
n=0;
for (y=0; y < (ssize_t) image->rows; y++)
{
register const Quantum
*p;
ssize_t
offset,
x;
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
if (p == (const Quantum *) NULL)
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
MagickBooleanType
match;
PixelTrait traits=GetPixelChannelTraits(image,channel);
if (traits == UndefinedPixelTrait)
continue;
offset=GetPixelChannelOffset(image,channel);
match=fabs((double) (p[offset]-target)) < 0.5 ? MagickTrue : MagickFalse;
if (match != MagickFalse)
{
if ((max_locations != 0) && (n >= (ssize_t) max_locations))
break;
(void) FormatLocaleFile(file," %.20g,%.20g",(double) x,(double) y);
n++;
}
p+=GetPixelChannels(image);
}
if (x < (ssize_t) image->columns)
break;
}
(void) FormatLocaleFile(file,"\n");
return(n);
}
static ssize_t PrintChannelMoments(FILE *file,const PixelChannel channel,
const char *name,const double scale,const ChannelMoments *channel_moments)
{
double
powers[MaximumNumberOfImageMoments] =
{ 1.0, 2.0, 3.0, 3.0, 6.0, 4.0, 6.0, 4.0 };
register ssize_t
i;
ssize_t
n;
n=FormatLocaleFile(file," %s:\n",name);
n+=FormatLocaleFile(file," Centroid: %.*g,%.*g\n",
GetMagickPrecision(),channel_moments[channel].centroid.x,
GetMagickPrecision(),channel_moments[channel].centroid.y);
n+=FormatLocaleFile(file," Ellipse Semi-Major/Minor axis: %.*g,%.*g\n",
GetMagickPrecision(),channel_moments[channel].ellipse_axis.x,
GetMagickPrecision(),channel_moments[channel].ellipse_axis.y);
n+=FormatLocaleFile(file," Ellipse angle: %.*g\n",
GetMagickPrecision(),channel_moments[channel].ellipse_angle);
n+=FormatLocaleFile(file," Ellipse eccentricity: %.*g\n",
GetMagickPrecision(),channel_moments[channel].ellipse_eccentricity);
n+=FormatLocaleFile(file," Ellipse intensity: %.*g (%.*g)\n",
GetMagickPrecision(),pow(scale,powers[0])*
channel_moments[channel].ellipse_intensity,GetMagickPrecision(),
channel_moments[channel].ellipse_intensity);
for (i=0; i < MaximumNumberOfImageMoments; i++)
n+=FormatLocaleFile(file," I%.20g: %.*g (%.*g)\n",i+1.0,
GetMagickPrecision(),channel_moments[channel].invariant[i]/pow(scale,
powers[i]),GetMagickPrecision(),channel_moments[channel].invariant[i]);
return(n);
}
static ssize_t PrintChannelPerceptualHash(FILE *file,const PixelChannel channel,
const char *name,const ChannelPerceptualHash *channel_phash)
{
register ssize_t
i;
ssize_t
n;
n=FormatLocaleFile(file," %s:\n",name);
for (i=0; i < MaximumNumberOfPerceptualHashes; i++)
n+=FormatLocaleFile(file," PH%.20g: %.*g, %.*g\n",i+1.0,
GetMagickPrecision(),channel_phash[channel].srgb_hu_phash[i],
GetMagickPrecision(),channel_phash[channel].hclp_hu_phash[i]);
return(n);
}
static ssize_t PrintChannelStatistics(FILE *file,const PixelChannel channel,
const char *name,const double scale,
const ChannelStatistics *channel_statistics)
{
#define StatisticsFormat " %s:\n min: " QuantumFormat \
" (%g)\n max: " QuantumFormat " (%g)\n" \
" mean: %g (%g)\n standard deviation: %g (%g)\n" \
" kurtosis: %g\n skewness: %g\n entropy: %g\n"
ssize_t
n;
n=FormatLocaleFile(file,StatisticsFormat,name,ClampToQuantum((MagickRealType)
(scale*channel_statistics[channel].minima)),
channel_statistics[channel].minima/(double) QuantumRange,ClampToQuantum(
(MagickRealType) (scale*channel_statistics[channel].maxima)),
channel_statistics[channel].maxima/(double) QuantumRange,scale*
channel_statistics[channel].mean,channel_statistics[channel].mean/(double)
QuantumRange,scale*channel_statistics[channel].standard_deviation,
channel_statistics[channel].standard_deviation/(double) QuantumRange,
channel_statistics[channel].kurtosis,channel_statistics[channel].skewness,
channel_statistics[channel].entropy);
return(n);
}
MagickExport MagickBooleanType IdentifyImage(Image *image,FILE *file,
const MagickBooleanType verbose,ExceptionInfo *exception)
{
char
color[MagickPathExtent],
format[MagickPathExtent],
key[MagickPathExtent];
ChannelFeatures
*channel_features;
ChannelMoments
*channel_moments;
ChannelPerceptualHash
*channel_phash;
ChannelStatistics
*channel_statistics;
ColorspaceType
colorspace;
const char
*artifact,
*locate,
*name,
*property,
*registry,
*value;
const MagickInfo
*magick_info;
double
elapsed_time,
scale,
user_time;
ImageType
base_type,
type;
MagickBooleanType
ping;
register const Quantum
*p;
register ssize_t
i,
x;
size_t
distance;
ssize_t
y;
assert(image != (Image *) NULL);
assert(image->signature == MagickCoreSignature);
if (image->debug != MagickFalse)
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
if (file == (FILE *) NULL)
file=stdout;
colorspace=image->colorspace;
type=IdentifyImageType(image,exception);
if ((type == BilevelType) || (type == GrayscaleType) ||
(type == GrayscaleAlphaType))
colorspace=GRAYColorspace;
locate=GetImageArtifact(image,"identify:locate");
if (locate != (const char *) NULL)
{
const char
*limit;
size_t
max_locations;
StatisticType
type;
/*
Display minimum, maximum, or mean pixel locations.
*/
type=(StatisticType) ParseCommandOption(MagickStatisticOptions,
MagickFalse,locate);
limit=GetImageArtifact(image,"identify:limit");
max_locations=0;
if (limit != (const char *) NULL)
max_locations=StringToUnsignedLong(limit);
channel_statistics=GetLocationStatistics(image,type,exception);
if (channel_statistics == (ChannelStatistics *) NULL)
return(MagickFalse);
(void) FormatLocaleFile(file,"Channel %s locations:\n",locate);
switch (colorspace)
{
case RGBColorspace:
default:
{
(void) PrintChannelLocations(file,image,RedPixelChannel,"Red",
type,max_locations,channel_statistics);
(void) PrintChannelLocations(file,image,GreenPixelChannel,"Green",
type,max_locations,channel_statistics);
(void) PrintChannelLocations(file,image,BluePixelChannel,"Blue",
type,max_locations,channel_statistics);
break;
}
case CMYKColorspace:
{
(void) PrintChannelLocations(file,image,CyanPixelChannel,"Cyan",
type,max_locations,channel_statistics);
(void) PrintChannelLocations(file,image,MagentaPixelChannel,"Magenta",
type,max_locations,channel_statistics);
(void) PrintChannelLocations(file,image,YellowPixelChannel,"Yellow",
type,max_locations,channel_statistics);
(void) PrintChannelLocations(file,image,BlackPixelChannel,"Black",
type,max_locations,channel_statistics);
break;
}
case GRAYColorspace:
{
(void) PrintChannelLocations(file,image,GrayPixelChannel,"Gray",
type,max_locations,channel_statistics);
break;
}
}
if (image->alpha_trait != UndefinedPixelTrait)
(void) PrintChannelLocations(file,image,AlphaPixelChannel,"Alpha",
type,max_locations,channel_statistics);
channel_statistics=(ChannelStatistics *) RelinquishMagickMemory(
channel_statistics);
return(ferror(file) != 0 ? MagickFalse : MagickTrue);
}
*format='\0';
elapsed_time=GetElapsedTime(&image->timer);
user_time=GetUserTime(&image->timer);
GetTimerInfo(&image->timer);
if (verbose == MagickFalse)
{
/*
Display summary info about the image.
*/
if (*image->magick_filename != '\0')
if (LocaleCompare(image->magick_filename,image->filename) != 0)
(void) FormatLocaleFile(file,"%s=>",image->magick_filename);
if ((GetPreviousImageInList(image) == (Image *) NULL) &&
(GetNextImageInList(image) == (Image *) NULL) &&
(image->scene == 0))
(void) FormatLocaleFile(file,"%s ",image->filename);
else
(void) FormatLocaleFile(file,"%s[%.20g] ",image->filename,(double)
image->scene);
(void) FormatLocaleFile(file,"%s ",image->magick);
if ((image->magick_columns != 0) || (image->magick_rows != 0))
if ((image->magick_columns != image->columns) ||
(image->magick_rows != image->rows))
(void) FormatLocaleFile(file,"%.20gx%.20g=>",(double)
image->magick_columns,(double) image->magick_rows);
(void) FormatLocaleFile(file,"%.20gx%.20g ",(double) image->columns,
(double) image->rows);
if ((image->page.width != 0) || (image->page.height != 0) ||
(image->page.x != 0) || (image->page.y != 0))
(void) FormatLocaleFile(file,"%.20gx%.20g%+.20g%+.20g ",(double)
image->page.width,(double) image->page.height,(double) image->page.x,
(double) image->page.y);
(void) FormatLocaleFile(file,"%.20g-bit ",(double) image->depth);
if (image->type != UndefinedType)
(void) FormatLocaleFile(file,"%s ",CommandOptionToMnemonic(
MagickTypeOptions,(ssize_t) image->type));
if (image->colorspace != UndefinedColorspace)
(void) FormatLocaleFile(file,"%s ",CommandOptionToMnemonic(
MagickColorspaceOptions,(ssize_t) image->colorspace));
if (image->storage_class == DirectClass)
{
if (image->total_colors != 0)
{
(void) FormatMagickSize(image->total_colors,MagickFalse,"B",
MagickPathExtent,format);
(void) FormatLocaleFile(file,"%s ",format);
}
}
else
if (image->total_colors <= image->colors)
(void) FormatLocaleFile(file,"%.20gc ",(double)
image->colors);
else
(void) FormatLocaleFile(file,"%.20g=>%.20gc ",(double)
image->total_colors,(double) image->colors);
if (image->error.mean_error_per_pixel != 0.0)
(void) FormatLocaleFile(file,"%.20g/%f/%fdb ",(double)
(image->error.mean_error_per_pixel+0.5),
image->error.normalized_mean_error,
image->error.normalized_maximum_error);
if (GetBlobSize(image) != 0)
{
(void) FormatMagickSize(GetBlobSize(image),MagickFalse,"B",
MagickPathExtent,format);
(void) FormatLocaleFile(file,"%s ",format);
}
(void) FormatLocaleFile(file,"%0.3fu %lu:%02lu.%03lu",user_time,
(unsigned long) (elapsed_time/60.0),(unsigned long) floor(fmod(
elapsed_time,60.0)),(unsigned long) (1000.0*(elapsed_time-
floor(elapsed_time))));
(void) FormatLocaleFile(file,"\n");
(void) fflush(file);
return(ferror(file) != 0 ? MagickFalse : MagickTrue);
}
/*
Display verbose info about the image.
*/
p=GetVirtualPixels(image,0,0,1,1,exception);
ping=p == (const Quantum *) NULL ? MagickTrue : MagickFalse;
(void) SignatureImage(image,exception);
(void) FormatLocaleFile(file,"Image: %s\n",image->filename);
if (*image->magick_filename != '\0')
if (LocaleCompare(image->magick_filename,image->filename) != 0)
{
char
filename[MagickPathExtent];
GetPathComponent(image->magick_filename,TailPath,filename);
(void) FormatLocaleFile(file," Base filename: %s\n",filename);
}
magick_info=GetMagickInfo(image->magick,exception);
if ((magick_info == (const MagickInfo *) NULL) ||
(GetMagickDescription(magick_info) == (const char *) NULL))
(void) FormatLocaleFile(file," Format: %s\n",image->magick);
else
(void) FormatLocaleFile(file," Format: %s (%s)\n",image->magick,
GetMagickDescription(magick_info));
if ((magick_info != (const MagickInfo *) NULL) &&
(GetMagickMimeType(magick_info) != (const char *) NULL))
(void) FormatLocaleFile(file," Mime type: %s\n",GetMagickMimeType(
magick_info));
(void) FormatLocaleFile(file," Class: %s\n",CommandOptionToMnemonic(
MagickClassOptions,(ssize_t) image->storage_class));
(void) FormatLocaleFile(file," Geometry: %.20gx%.20g%+.20g%+.20g\n",(double)
image->columns,(double) image->rows,(double) image->tile_offset.x,(double)
image->tile_offset.y);
if ((image->magick_columns != 0) || (image->magick_rows != 0))
if ((image->magick_columns != image->columns) ||
(image->magick_rows != image->rows))
(void) FormatLocaleFile(file," Base geometry: %.20gx%.20g\n",(double)
image->magick_columns,(double) image->magick_rows);
if ((image->resolution.x != 0.0) && (image->resolution.y != 0.0))
{
(void) FormatLocaleFile(file," Resolution: %gx%g\n",image->resolution.x,
image->resolution.y);
(void) FormatLocaleFile(file," Print size: %gx%g\n",(double)
image->columns/image->resolution.x,(double) image->rows/
image->resolution.y);
}
(void) FormatLocaleFile(file," Units: %s\n",CommandOptionToMnemonic(
MagickResolutionOptions,(ssize_t) image->units));
(void) FormatLocaleFile(file," Type: %s\n",CommandOptionToMnemonic(
MagickTypeOptions,(ssize_t) type));
base_type=GetImageType(image);
if (type != base_type)
(void) FormatLocaleFile(file," Base type: %s\n",CommandOptionToMnemonic(
MagickTypeOptions,(ssize_t) base_type));
(void) FormatLocaleFile(file," Endianess: %s\n",CommandOptionToMnemonic(
MagickEndianOptions,(ssize_t) image->endian));
/*
Detail channel depth and extrema.
*/
(void) FormatLocaleFile(file," Colorspace: %s\n",CommandOptionToMnemonic(
MagickColorspaceOptions,(ssize_t) image->colorspace));
channel_statistics=(ChannelStatistics *) NULL;
channel_moments=(ChannelMoments *) NULL;
channel_phash=(ChannelPerceptualHash *) NULL;
channel_features=(ChannelFeatures *) NULL;
scale=1.0;
if (ping == MagickFalse)
{
size_t
depth;
channel_statistics=GetImageStatistics(image,exception);
if (channel_statistics == (ChannelStatistics *) NULL)
return(MagickFalse);
artifact=GetImageArtifact(image,"identify:moments");
if (artifact != (const char *) NULL)
{
channel_moments=GetImageMoments(image,exception);
channel_phash=GetImagePerceptualHash(image,exception);
}
artifact=GetImageArtifact(image,"identify:features");
if (artifact != (const char *) NULL)
{
distance=StringToUnsignedLong(artifact);
channel_features=GetImageFeatures(image,distance,exception);
}
depth=GetImageDepth(image,exception);
if (image->depth == depth)
(void) FormatLocaleFile(file," Depth: %.20g-bit\n",(double)
image->depth);
else
(void) FormatLocaleFile(file," Depth: %.20g/%.20g-bit\n",(double)
image->depth,(double) depth);
(void) FormatLocaleFile(file," Channel depth:\n");
switch (colorspace)
{
case RGBColorspace:
default:
{
(void) FormatLocaleFile(file," Red: %.20g-bit\n",(double)
channel_statistics[RedPixelChannel].depth);
(void) FormatLocaleFile(file," Green: %.20g-bit\n",(double)
channel_statistics[GreenPixelChannel].depth);
(void) FormatLocaleFile(file," Blue: %.20g-bit\n",(double)
channel_statistics[BluePixelChannel].depth);
break;
}
case CMYKColorspace:
{
(void) FormatLocaleFile(file," Cyan: %.20g-bit\n",(double)
channel_statistics[CyanPixelChannel].depth);
(void) FormatLocaleFile(file," Magenta: %.20g-bit\n",(double)
channel_statistics[MagentaPixelChannel].depth);
(void) FormatLocaleFile(file," Yellow: %.20g-bit\n",(double)
channel_statistics[YellowPixelChannel].depth);
(void) FormatLocaleFile(file," Black: %.20g-bit\n",(double)
channel_statistics[BlackPixelChannel].depth);
break;
}
case GRAYColorspace:
{
(void) FormatLocaleFile(file," Gray: %.20g-bit\n",(double)
channel_statistics[GrayPixelChannel].depth);
break;
}
}
if (image->alpha_trait != UndefinedPixelTrait)
(void) FormatLocaleFile(file," Alpha: %.20g-bit\n",(double)
channel_statistics[AlphaPixelChannel].depth);
scale=1.0;
if (image->depth <= MAGICKCORE_QUANTUM_DEPTH)
scale=(double) QuantumRange/((size_t) QuantumRange >> ((size_t)
MAGICKCORE_QUANTUM_DEPTH-image->depth));
}
if (channel_statistics != (ChannelStatistics *) NULL)
{
(void) FormatLocaleFile(file," Channel statistics:\n");
(void) FormatLocaleFile(file," Pixels: %.20g\n",(double)
image->columns*image->rows);
switch (colorspace)
{
case RGBColorspace:
default:
{
(void) PrintChannelStatistics(file,RedPixelChannel,"Red",1.0/
scale,channel_statistics);
(void) PrintChannelStatistics(file,GreenPixelChannel,"Green",1.0/
scale,channel_statistics);
(void) PrintChannelStatistics(file,BluePixelChannel,"Blue",1.0/
scale,channel_statistics);
break;
}
case CMYKColorspace:
{
(void) PrintChannelStatistics(file,CyanPixelChannel,"Cyan",1.0/
scale,channel_statistics);
(void) PrintChannelStatistics(file,MagentaPixelChannel,"Magenta",1.0/
scale,channel_statistics);
(void) PrintChannelStatistics(file,YellowPixelChannel,"Yellow",1.0/
scale,channel_statistics);
(void) PrintChannelStatistics(file,BlackPixelChannel,"Black",1.0/
scale,channel_statistics);
break;
}
case GRAYColorspace:
{
(void) PrintChannelStatistics(file,GrayPixelChannel,"Gray",1.0/
scale,channel_statistics);
break;
}
}
if (image->alpha_trait != UndefinedPixelTrait)
(void) PrintChannelStatistics(file,AlphaPixelChannel,"Alpha",1.0/
scale,channel_statistics);
if (colorspace != GRAYColorspace)
{
(void) FormatLocaleFile(file," Image statistics:\n");
(void) PrintChannelStatistics(file,(PixelChannel) MaxPixelChannels,
"Overall",1.0/scale,channel_statistics);
}
channel_statistics=(ChannelStatistics *) RelinquishMagickMemory(
channel_statistics);
}
if (channel_moments != (ChannelMoments *) NULL)
{
scale=(double) ((1UL << image->depth)-1);
(void) FormatLocaleFile(file," Channel moments:\n");
switch (colorspace)
{
case RGBColorspace:
default:
{
(void) PrintChannelMoments(file,RedPixelChannel,"Red",scale,
channel_moments);
(void) PrintChannelMoments(file,GreenPixelChannel,"Green",scale,
channel_moments);
(void) PrintChannelMoments(file,BluePixelChannel,"Blue",scale,
channel_moments);
break;
}
case CMYKColorspace:
{
(void) PrintChannelMoments(file,CyanPixelChannel,"Cyan",scale,
channel_moments);
(void) PrintChannelMoments(file,MagentaPixelChannel,"Magenta",scale,
channel_moments);
(void) PrintChannelMoments(file,YellowPixelChannel,"Yellow",scale,
channel_moments);
(void) PrintChannelMoments(file,BlackPixelChannel,"Black",scale,
channel_moments);
break;
}
case GRAYColorspace:
{
(void) PrintChannelMoments(file,GrayPixelChannel,"Gray",scale,
channel_moments);
break;
}
}
if (image->alpha_trait != UndefinedPixelTrait)
(void) PrintChannelMoments(file,AlphaPixelChannel,"Alpha",scale,
channel_moments);
if (colorspace != GRAYColorspace)
{
(void) FormatLocaleFile(file," Image moments:\n");
(void) PrintChannelMoments(file,(PixelChannel) MaxPixelChannels,
"Overall",scale,channel_moments);
}
channel_moments=(ChannelMoments *) RelinquishMagickMemory(
channel_moments);
}
if (channel_phash != (ChannelPerceptualHash *) NULL)
{
(void) FormatLocaleFile(file," Channel perceptual hash:\n");
(void) PrintChannelPerceptualHash(file,RedPixelChannel,"Red, Hue",
channel_phash);
(void) PrintChannelPerceptualHash(file,GreenPixelChannel,"Green, Chroma",
channel_phash);
(void) PrintChannelPerceptualHash(file,BluePixelChannel,"Blue, Luma",
channel_phash);
if (image->alpha_trait != UndefinedPixelTrait)
(void) PrintChannelPerceptualHash(file,AlphaPixelChannel,"Alpha, Alpha",
channel_phash);
channel_phash=(ChannelPerceptualHash *) RelinquishMagickMemory(
channel_phash);
}
if (channel_features != (ChannelFeatures *) NULL)
{
(void) FormatLocaleFile(file," Channel features (horizontal, vertical, "
"left and right diagonals, average):\n");
switch (colorspace)
{
case RGBColorspace:
default:
{
(void) PrintChannelFeatures(file,RedPixelChannel,"Red",
channel_features);
(void) PrintChannelFeatures(file,GreenPixelChannel,"Green",
channel_features);
(void) PrintChannelFeatures(file,BluePixelChannel,"Blue",
channel_features);
break;
}
case CMYKColorspace:
{
(void) PrintChannelFeatures(file,CyanPixelChannel,"Cyan",
channel_features);
(void) PrintChannelFeatures(file,MagentaPixelChannel,"Magenta",
channel_features);
(void) PrintChannelFeatures(file,YellowPixelChannel,"Yellow",
channel_features);
(void) PrintChannelFeatures(file,BlackPixelChannel,"Black",
channel_features);
break;
}
case GRAYColorspace:
{
(void) PrintChannelFeatures(file,GrayPixelChannel,"Gray",
channel_features);
break;
}
}
if (image->alpha_trait != UndefinedPixelTrait)
(void) PrintChannelFeatures(file,AlphaPixelChannel,"Alpha",
channel_features);
channel_features=(ChannelFeatures *) RelinquishMagickMemory(
channel_features);
}
if (ping == MagickFalse)
{
if (image->colorspace == CMYKColorspace)
(void) FormatLocaleFile(file," Total ink density: %*g%%\n",
GetMagickPrecision(),100.0*GetImageTotalInkDensity(image,exception)/
(double) QuantumRange);
x=0;
if (image->alpha_trait != UndefinedPixelTrait)
{
register const Quantum
*p;
p=(const Quantum *) NULL;
for (y=0; y < (ssize_t) image->rows; y++)
{
p=GetVirtualPixels(image,0,y,image->columns,1,exception);
if (p == (const Quantum *) NULL)
break;
for (x=0; x < (ssize_t) image->columns; x++)
{
if (GetPixelAlpha(image,p) == (Quantum) TransparentAlpha)
break;
p+=GetPixelChannels(image);
}
if (x < (ssize_t) image->columns)
break;
}
if ((x < (ssize_t) image->columns) || (y < (ssize_t) image->rows))
{
char
tuple[MagickPathExtent];
PixelInfo
pixel;
GetPixelInfo(image,&pixel);
GetPixelInfoPixel(image,p,&pixel);
(void) QueryColorname(image,&pixel,SVGCompliance,tuple,
exception);
(void) FormatLocaleFile(file," Alpha: %s ",tuple);
GetColorTuple(&pixel,MagickTrue,tuple);
(void) FormatLocaleFile(file," %s\n",tuple);
}
}
if (IsHistogramImage(image,exception) != MagickFalse)
{
(void) FormatLocaleFile(file," Colors: %.20g\n",(double)
GetNumberColors(image,(FILE *) NULL,exception));
(void) FormatLocaleFile(file," Histogram:\n");
(void) GetNumberColors(image,file,exception);
}
else
{
artifact=GetImageArtifact(image,"identify:unique-colors");
if (IsStringTrue(artifact) != MagickFalse)
(void) FormatLocaleFile(file," Colors: %.20g\n",(double)
GetNumberColors(image,(FILE *) NULL,exception));
}
}
if (image->storage_class == PseudoClass)
{
(void) FormatLocaleFile(file," Colormap entries: %.20g\n",(double)
image->colors);
(void) FormatLocaleFile(file," Colormap:\n");
if (image->colors <= 1024)
{
char
color[MagickPathExtent],
hex[MagickPathExtent],
tuple[MagickPathExtent];
PixelInfo
pixel;
register PixelInfo
*magick_restrict p;
GetPixelInfo(image,&pixel);