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magick-image.c
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/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M M AAA GGGG IIIII CCCC K K %
% MM MM A A G I C K K %
% M M M AAAAA G GGG I C KKK %
% M M A A G G I C K K %
% M M A A GGGG IIIII CCCC K K %
% %
% IIIII M M AAA GGGG EEEEE %
% I MM MM A A G E %
% I M M M AAAAA G GG EEE %
% I M M A A G G E %
% IIIII M M A A GGGG EEEEE %
% %
% %
% MagickWand Image Methods %
% %
% Software Design %
% Cristy %
% August 2003 %
% %
% %
% Copyright 1999-2017 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 %
% %
% https://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 "MagickWand/studio.h"
#include "MagickWand/MagickWand.h"
#include "MagickWand/magick-wand-private.h"
#include "MagickWand/wand.h"
#include "MagickWand/pixel-wand-private.h"
#include "MagickCore/image-private.h"
#include <math.h>
#define PI 3.14159265
/*
Define declarations.
*/
#define MagickWandId "MagickWand"
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
+ C l o n e M a g i c k W a n d F r o m I m a g e s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% CloneMagickWandFromImages() clones the magick wand and inserts a new image
% list.
%
% The format of the CloneMagickWandFromImages method is:
%
% MagickWand *CloneMagickWandFromImages(const MagickWand *wand,
% Image *images)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o images: replace the image list with these image(s).
%
*/
static MagickWand *CloneMagickWandFromImages(const MagickWand *wand,
Image *images)
{
MagickWand
*clone_wand;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
clone_wand=(MagickWand *) AcquireMagickMemory(sizeof(*clone_wand));
if (clone_wand == (MagickWand *) NULL)
ThrowWandFatalException(ResourceLimitFatalError,"MemoryAllocationFailed",
images->filename);
(void) ResetMagickMemory(clone_wand,0,sizeof(*clone_wand));
clone_wand->id=AcquireWandId();
(void) FormatLocaleString(clone_wand->name,MagickPathExtent,"%s-%.20g",
MagickWandId,(double) clone_wand->id);
clone_wand->exception=AcquireExceptionInfo();
InheritException(clone_wand->exception,wand->exception);
clone_wand->image_info=CloneImageInfo(wand->image_info);
clone_wand->images=images;
clone_wand->debug=IsEventLogging();
clone_wand->signature=MagickWandSignature;
if (clone_wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",clone_wand->name);
return(clone_wand);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% G e t I m a g e F r o m M a g i c k W a n d %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% GetImageFromMagickWand() returns the current image from the magick wand.
%
% The format of the GetImageFromMagickWand method is:
%
% Image *GetImageFromMagickWand(const MagickWand *wand)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
*/
WandExport Image *GetImageFromMagickWand(const MagickWand *wand)
{
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
if (wand->images == (Image *) NULL)
{
(void) ThrowMagickException(wand->exception,GetMagickModule(),WandError,
"ContainsNoImages","`%s'",wand->name);
return((Image *) NULL);
}
return(wand->images);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M a g i c k A d a p t i v e S h a r p e n I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickAdaptiveBlurImage() adaptively blurs the image by blurring
% less intensely near image edges and more intensely far from edges. We
% blur the image with a Gaussian operator of the given radius and standard
% deviation (sigma). For reasonable results, radius should be larger than
% sigma. Use a radius of 0 and MagickAdaptiveBlurImage() selects a
% suitable radius for you.
%
% The format of the MagickAdaptiveBlurImage method is:
%
% MagickBooleanType MagickAdaptiveBlurImage(MagickWand *wand,
% const double radius,const double sigma)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o radius: the radius of the Gaussian, in pixels, not counting the center
% pixel.
%
% o sigma: the standard deviation of the Gaussian, in pixels.
%
*/
WandExport MagickBooleanType MagickAdaptiveBlurImage(MagickWand *wand,
const double radius,const double sigma)
{
Image
*sharp_image;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
if (wand->images == (Image *) NULL)
ThrowWandException(WandError,"ContainsNoImages",wand->name);
sharp_image=AdaptiveBlurImage(wand->images,radius,sigma,wand->exception);
if (sharp_image == (Image *) NULL)
return(MagickFalse);
ReplaceImageInList(&wand->images,sharp_image);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M a g i c k A d a p t i v e R e s i z e I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickAdaptiveResizeImage() adaptively resize image with data dependent
% triangulation.
%
% MagickBooleanType MagickAdaptiveResizeImage(MagickWand *wand,
% const size_t columns,const size_t rows)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o columns: the number of columns in the scaled image.
%
% o rows: the number of rows in the scaled image.
%
*/
WandExport MagickBooleanType MagickAdaptiveResizeImage(MagickWand *wand,
const size_t columns,const size_t rows)
{
Image
*resize_image;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
if (wand->images == (Image *) NULL)
ThrowWandException(WandError,"ContainsNoImages",wand->name);
resize_image=AdaptiveResizeImage(wand->images,columns,rows,wand->exception);
if (resize_image == (Image *) NULL)
return(MagickFalse);
ReplaceImageInList(&wand->images,resize_image);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M a g i c k A d a p t i v e S h a r p e n I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickAdaptiveSharpenImage() adaptively sharpens the image by sharpening
% more intensely near image edges and less intensely far from edges. We
% sharpen the image with a Gaussian operator of the given radius and standard
% deviation (sigma). For reasonable results, radius should be larger than
% sigma. Use a radius of 0 and MagickAdaptiveSharpenImage() selects a
% suitable radius for you.
%
% The format of the MagickAdaptiveSharpenImage method is:
%
% MagickBooleanType MagickAdaptiveSharpenImage(MagickWand *wand,
% const double radius,const double sigma)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o radius: the radius of the Gaussian, in pixels, not counting the center
% pixel.
%
% o sigma: the standard deviation of the Gaussian, in pixels.
%
*/
WandExport MagickBooleanType MagickAdaptiveSharpenImage(MagickWand *wand,
const double radius,const double sigma)
{
Image
*sharp_image;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
if (wand->images == (Image *) NULL)
ThrowWandException(WandError,"ContainsNoImages",wand->name);
sharp_image=AdaptiveSharpenImage(wand->images,radius,sigma,wand->exception);
if (sharp_image == (Image *) NULL)
return(MagickFalse);
ReplaceImageInList(&wand->images,sharp_image);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M a g i c k A d a p t i v e T h r e s h o l d I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickAdaptiveThresholdImage() selects an individual threshold for each pixel
% based on the range of intensity values in its local neighborhood. This
% allows for thresholding of an image whose global intensity histogram
% doesn't contain distinctive peaks.
%
% The format of the AdaptiveThresholdImage method is:
%
% MagickBooleanType MagickAdaptiveThresholdImage(MagickWand *wand,
% const size_t width,const size_t height,const double bias)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o width: the width of the local neighborhood.
%
% o height: the height of the local neighborhood.
%
% o offset: the mean bias.
%
*/
WandExport MagickBooleanType MagickAdaptiveThresholdImage(MagickWand *wand,
const size_t width,const size_t height,const double bias)
{
Image
*threshold_image;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
if (wand->images == (Image *) NULL)
ThrowWandException(WandError,"ContainsNoImages",wand->name);
threshold_image=AdaptiveThresholdImage(wand->images,width,height,bias,
wand->exception);
if (threshold_image == (Image *) NULL)
return(MagickFalse);
ReplaceImageInList(&wand->images,threshold_image);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M a g i c k A d d I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickAddImage() adds a clone of the images from the second wand and
% inserts them into the first wand.
%
% Use MagickSetLastIterator(), to append new images into an existing wand,
% current image will be set to last image so later adds with also be
% appened to end of wand.
%
% Use MagickSetFirstIterator() to prepend new images into wand, any more
% images added will also be prepended before other images in the wand.
% However the order of a list of new images will not change.
%
% Otherwise the new images will be inserted just after the current image,
% and any later image will also be added after this current image but
% before the previously added images. Caution is advised when multiple
% image adds are inserted into the middle of the wand image list.
%
% The format of the MagickAddImage method is:
%
% MagickBooleanType MagickAddImage(MagickWand *wand,
% const MagickWand *add_wand)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o add_wand: A wand that contains the image list to be added
%
*/
static inline MagickBooleanType InsertImageInWand(MagickWand *wand,
Image *images)
{
if (wand->images == (Image *) NULL)
{
/*
No images in wand, just add them, set current as appropriate.
*/
if (wand->insert_before != MagickFalse)
wand->images=GetFirstImageInList(images);
else
wand->images=GetLastImageInList(images);
return(MagickTrue);
}
/* user jumped to first image, so prepend new images - remain active */
if ((wand->insert_before != MagickFalse) &&
(wand->images->previous == (Image *) NULL))
{
PrependImageToList(&wand->images,images);
wand->images=GetFirstImageInList(images);
return(MagickTrue);
}
/*
Note you should never have 'insert_before' true when current image is not
the first image in the wand! That is no insert before current image, only
after current image
*/
if (wand->images->next == (Image *) NULL)
{
/*
At last image, append new images.
*/
InsertImageInList(&wand->images,images);
wand->images=GetLastImageInList(images);
return(MagickTrue);
}
/*
Insert new images, just after the current image.
*/
InsertImageInList(&wand->images,images);
return(MagickTrue);
}
WandExport MagickBooleanType MagickAddImage(MagickWand *wand,
const MagickWand *add_wand)
{
Image
*images;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
assert(add_wand != (MagickWand *) NULL);
assert(add_wand->signature == MagickWandSignature);
if (add_wand->images == (Image *) NULL)
ThrowWandException(WandError,"ContainsNoImages",add_wand->name);
/*
Clone images in second wand, and insert into first.
*/
images=CloneImageList(add_wand->images,wand->exception);
if (images == (Image *) NULL)
return(MagickFalse);
return(InsertImageInWand(wand,images));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M a g i c k A d d N o i s e I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickAddNoiseImage() adds random noise to the image.
%
% The format of the MagickAddNoiseImage method is:
%
% MagickBooleanType MagickAddNoiseImage(MagickWand *wand,
% const NoiseType noise_type,const double attenuate)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o noise_type: The type of noise: Uniform, Gaussian, Multiplicative,
% Impulse, Laplacian, or Poisson.
%
% o attenuate: attenuate the random distribution.
%
*/
WandExport MagickBooleanType MagickAddNoiseImage(MagickWand *wand,
const NoiseType noise_type,const double attenuate)
{
Image
*noise_image;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
if (wand->images == (Image *) NULL)
ThrowWandException(WandError,"ContainsNoImages",wand->name);
noise_image=AddNoiseImage(wand->images,noise_type,attenuate,wand->exception);
if (noise_image == (Image *) NULL)
return(MagickFalse);
ReplaceImageInList(&wand->images,noise_image);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M a g i c k A f f i n e T r a n s f o r m I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickAffineTransformImage() transforms an image as dictated by the affine
% matrix of the drawing wand.
%
% The format of the MagickAffineTransformImage method is:
%
% MagickBooleanType MagickAffineTransformImage(MagickWand *wand,
% const DrawingWand *drawing_wand)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o drawing_wand: the draw wand.
%
*/
WandExport MagickBooleanType MagickAffineTransformImage(MagickWand *wand,
const DrawingWand *drawing_wand)
{
DrawInfo
*draw_info;
Image
*affine_image;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
if (wand->images == (Image *) NULL)
ThrowWandException(WandError,"ContainsNoImages",wand->name);
draw_info=PeekDrawingWand(drawing_wand);
if (draw_info == (DrawInfo *) NULL)
return(MagickFalse);
affine_image=AffineTransformImage(wand->images,&draw_info->affine,
wand->exception);
draw_info=DestroyDrawInfo(draw_info);
if (affine_image == (Image *) NULL)
return(MagickFalse);
ReplaceImageInList(&wand->images,affine_image);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M a g i c k A n n o t a t e I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickAnnotateImage() annotates an image with text.
%
% The format of the MagickAnnotateImage method is:
%
% MagickBooleanType MagickAnnotateImage(MagickWand *wand,
% const DrawingWand *drawing_wand,const double x,const double y,
% const double angle,const char *text)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o drawing_wand: the draw wand.
%
% o x: x ordinate to left of text
%
% o y: y ordinate to text baseline
%
% o angle: rotate text relative to this angle.
%
% o text: text to draw
%
*/
WandExport MagickBooleanType MagickAnnotateImage(MagickWand *wand,
const DrawingWand *drawing_wand,const double x,const double y,
const double angle,const char *text)
{
char
geometry[MagickPathExtent];
DrawInfo
*draw_info;
MagickBooleanType
status;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
if (wand->images == (Image *) NULL)
ThrowWandException(WandError,"ContainsNoImages",wand->name);
draw_info=PeekDrawingWand(drawing_wand);
if (draw_info == (DrawInfo *) NULL)
return(MagickFalse);
(void) CloneString(&draw_info->text,text);
(void) FormatLocaleString(geometry,MagickPathExtent,"%+g%+g",x,y);
draw_info->affine.sx=cos((double) DegreesToRadians(fmod(angle,360.0)));
draw_info->affine.rx=sin((double) DegreesToRadians(fmod(angle,360.0)));
draw_info->affine.ry=(-sin((double) DegreesToRadians(fmod(angle,360.0))));
draw_info->affine.sy=cos((double) DegreesToRadians(fmod(angle,360.0)));
(void) CloneString(&draw_info->geometry,geometry);
status=AnnotateImage(wand->images,draw_info,wand->exception);
draw_info=DestroyDrawInfo(draw_info);
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M a g i c k A n i m a t e I m a g e s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickAnimateImages() animates an image or image sequence.
%
% The format of the MagickAnimateImages method is:
%
% MagickBooleanType MagickAnimateImages(MagickWand *wand,
% const char *server_name)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o server_name: the X server name.
%
*/
WandExport MagickBooleanType MagickAnimateImages(MagickWand *wand,
const char *server_name)
{
MagickBooleanType
status;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
(void) CloneString(&wand->image_info->server_name,server_name);
status=AnimateImages(wand->image_info,wand->images,wand->exception);
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M a g i c k A p p e n d I m a g e s %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickAppendImages() append the images in a wand from the current image
% onwards, creating a new wand with the single image result. This is
% affected by the gravity and background settings of the first image.
%
% Typically you would call either MagickResetIterator() or
% MagickSetFirstImage() before calling this function to ensure that all
% the images in the wand's image list will be appended together.
%
% The format of the MagickAppendImages method is:
%
% MagickWand *MagickAppendImages(MagickWand *wand,
% const MagickBooleanType stack)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o stack: By default, images are stacked left-to-right. Set stack to
% MagickTrue to stack them top-to-bottom.
%
*/
WandExport MagickWand *MagickAppendImages(MagickWand *wand,
const MagickBooleanType stack)
{
Image
*append_image;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
if (wand->images == (Image *) NULL)
return((MagickWand *) NULL);
append_image=AppendImages(wand->images,stack,wand->exception);
if (append_image == (Image *) NULL)
return((MagickWand *) NULL);
return(CloneMagickWandFromImages(wand,append_image));
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M a g i c k A u t o G a m m a I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickAutoGammaImage() extracts the 'mean' from the image and adjust the
% image to try make set its gamma appropriatally.
%
% The format of the MagickAutoGammaImage method is:
%
% MagickBooleanType MagickAutoGammaImage(MagickWand *wand)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
*/
WandExport MagickBooleanType MagickAutoGammaImage(MagickWand *wand)
{
MagickBooleanType
status;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
if (wand->images == (Image *) NULL)
ThrowWandException(WandError,"ContainsNoImages",wand->name);
status=AutoGammaImage(wand->images,wand->exception);
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M a g i c k A u t o L e v e l I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickAutoLevelImage() adjusts the levels of a particular image channel by
% scaling the minimum and maximum values to the full quantum range.
%
% The format of the MagickAutoLevelImage method is:
%
% MagickBooleanType MagickAutoLevelImage(MagickWand *wand)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
*/
WandExport MagickBooleanType MagickAutoLevelImage(MagickWand *wand)
{
MagickBooleanType
status;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
if (wand->images == (Image *) NULL)
ThrowWandException(WandError,"ContainsNoImages",wand->name);
status=AutoLevelImage(wand->images,wand->exception);
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M a g i c k A u t o O r i e n t I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickAutoOrientImage() adjusts an image so that its orientation is suitable
$ for viewing (i.e. top-left orientation).
%
% The format of the MagickAutoOrientImage method is:
%
% MagickBooleanType MagickAutoOrientImage(MagickWand *image)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
*/
WandExport MagickBooleanType MagickAutoOrientImage(MagickWand *wand)
{
Image
*orient_image;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
if (wand->images == (Image *) NULL)
ThrowWandException(WandError,"ContainsNoImages",wand->name);
orient_image=AutoOrientImage(wand->images,wand->images->orientation,
wand->exception);
if (orient_image == (Image *) NULL)
return(MagickFalse);
ReplaceImageInList(&wand->images,orient_image);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M a g i c k B l a c k T h r e s h o l d I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickBlackThresholdImage() is like MagickThresholdImage() but forces all
% pixels below the threshold into black while leaving all pixels above the
% threshold unchanged.
%
% The format of the MagickBlackThresholdImage method is:
%
% MagickBooleanType MagickBlackThresholdImage(MagickWand *wand,
% const PixelWand *threshold)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o threshold: the pixel wand.
%
*/
WandExport MagickBooleanType MagickBlackThresholdImage(MagickWand *wand,
const PixelWand *threshold)
{
char
thresholds[MagickPathExtent];
MagickBooleanType
status;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
if (wand->images == (Image *) NULL)
ThrowWandException(WandError,"ContainsNoImages",wand->name);
(void) FormatLocaleString(thresholds,MagickPathExtent,
QuantumFormat "," QuantumFormat "," QuantumFormat "," QuantumFormat,
PixelGetRedQuantum(threshold),PixelGetGreenQuantum(threshold),
PixelGetBlueQuantum(threshold),PixelGetAlphaQuantum(threshold));
status=BlackThresholdImage(wand->images,thresholds,wand->exception);
return(status);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M a g i c k B l u e S h i f t I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickBlueShiftImage() mutes the colors of the image to simulate a scene at
% nighttime in the moonlight.
%
% The format of the MagickBlueShiftImage method is:
%
% MagickBooleanType MagickBlueShiftImage(MagickWand *wand,
% const double factor)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o factor: the blue shift factor (default 1.5)
%
*/
WandExport MagickBooleanType MagickBlueShiftImage(MagickWand *wand,
const double factor)
{
Image
*shift_image;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
if (wand->images == (Image *) NULL)
ThrowWandException(WandError,"ContainsNoImages",wand->name);
shift_image=BlueShiftImage(wand->images,factor,wand->exception);
if (shift_image == (Image *) NULL)
return(MagickFalse);
ReplaceImageInList(&wand->images,shift_image);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M a g i c k B l u r I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickBlurImage() blurs an image. We convolve the image with a
% gaussian operator of the given radius and standard deviation (sigma).
% For reasonable results, the radius should be larger than sigma. Use a
% radius of 0 and BlurImage() selects a suitable radius for you.
%
% The format of the MagickBlurImage method is:
%
% MagickBooleanType MagickBlurImage(MagickWand *wand,const double radius,
% const double sigma)
%
% A description of each parameter follows:
%
% o wand: the magick wand.
%
% o radius: the radius of the , in pixels, not counting the center
% pixel.
%
% o sigma: the standard deviation of the , in pixels.
%
*/
WandExport MagickBooleanType MagickBlurImage(MagickWand *wand,
const double radius,const double sigma)
{
Image
*blur_image;
assert(wand != (MagickWand *) NULL);
assert(wand->signature == MagickWandSignature);
if (wand->debug != MagickFalse)
(void) LogMagickEvent(WandEvent,GetMagickModule(),"%s",wand->name);
if (wand->images == (Image *) NULL)
ThrowWandException(WandError,"ContainsNoImages",wand->name);
blur_image=BlurImage(wand->images,radius,sigma,wand->exception);
if (blur_image == (Image *) NULL)
return(MagickFalse);
ReplaceImageInList(&wand->images,blur_image);
return(MagickTrue);
}
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %
% %
% %
% M a g i c k B o r d e r I m a g e %
% %
% %
% %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% MagickBorderImage() surrounds the image with a border of the color defined
% by the bordercolor pixel wand.
%
% The format of the MagickBorderImage method is:
%
% MagickBooleanType MagickBorderImage(MagickWand *wand,