/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
|
% %
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% %
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% AAA TTTTT TTTTT RRRR IIIII BBBB U U TTTTT EEEEE %
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% A A T T R R I B B U U T E %
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% AAAAA T T RRRR I BBBB U U T EEE %
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% A A T T R R I B B U U T E %
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% A A T T R R IIIII BBBB UUU T EEEEE %
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% %
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% %
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% MagickCore Get / Set Image Attributes %
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% %
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% Software Design %
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% Cristy %
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% October 2002 %
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% %
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% %
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% Copyright 1999-2019 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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% https://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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%
|
*/
|
|
/*
|
Include declarations.
|
*/
|
#include "MagickCore/studio.h"
|
#include "MagickCore/artifact.h"
|
#include "MagickCore/attribute.h"
|
#include "MagickCore/blob.h"
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#include "MagickCore/blob-private.h"
|
#include "MagickCore/cache.h"
|
#include "MagickCore/cache-private.h"
|
#include "MagickCore/cache-view.h"
|
#include "MagickCore/channel.h"
|
#include "MagickCore/client.h"
|
#include "MagickCore/color.h"
|
#include "MagickCore/color-private.h"
|
#include "MagickCore/colormap.h"
|
#include "MagickCore/colormap-private.h"
|
#include "MagickCore/colorspace.h"
|
#include "MagickCore/colorspace-private.h"
|
#include "MagickCore/composite.h"
|
#include "MagickCore/composite-private.h"
|
#include "MagickCore/constitute.h"
|
#include "MagickCore/draw.h"
|
#include "MagickCore/draw-private.h"
|
#include "MagickCore/effect.h"
|
#include "MagickCore/enhance.h"
|
#include "MagickCore/exception.h"
|
#include "MagickCore/exception-private.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/log.h"
|
#include "MagickCore/memory_.h"
|
#include "MagickCore/magick.h"
|
#include "MagickCore/monitor.h"
|
#include "MagickCore/monitor-private.h"
|
#include "MagickCore/option.h"
|
#include "MagickCore/paint.h"
|
#include "MagickCore/pixel.h"
|
#include "MagickCore/pixel-accessor.h"
|
#include "MagickCore/property.h"
|
#include "MagickCore/quantize.h"
|
#include "MagickCore/quantum-private.h"
|
#include "MagickCore/random_.h"
|
#include "MagickCore/resource_.h"
|
#include "MagickCore/semaphore.h"
|
#include "MagickCore/segment.h"
|
#include "MagickCore/splay-tree.h"
|
#include "MagickCore/string_.h"
|
#include "MagickCore/string-private.h"
|
#include "MagickCore/thread-private.h"
|
#include "MagickCore/threshold.h"
|
#include "MagickCore/transform.h"
|
#include "MagickCore/utility.h"
|
|
/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
+ G e t I m a g e B o u n d i n g B o x %
|
% %
|
% %
|
% %
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%
|
% GetImageBoundingBox() returns the bounding box of an image canvas.
|
%
|
% The format of the GetImageBoundingBox method is:
|
%
|
% RectangleInfo GetImageBoundingBox(const Image *image,
|
% ExceptionInfo *exception)
|
%
|
% A description of each parameter follows:
|
%
|
% o bounds: Method GetImageBoundingBox returns the bounding box of an
|
% image canvas.
|
%
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% o image: the image.
|
%
|
% o exception: return any errors or warnings in this structure.
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%
|
*/
|
|
typedef struct _EdgeInfo
|
{
|
double
|
left,
|
right,
|
top,
|
bottom;
|
} EdgeInfo;
|
|
static double GetEdgeBackgroundFactor(const Image *image,
|
const CacheView *image_view,const GravityType gravity,const size_t width,
|
const size_t height,const ssize_t x_offset,const ssize_t y_offset,
|
ExceptionInfo *exception)
|
{
|
CacheView
|
*edge_view;
|
|
double
|
factor;
|
|
Image
|
*edge_image;
|
|
PixelInfo
|
background,
|
pixel;
|
|
RectangleInfo
|
edge_geometry;
|
|
register const Quantum
|
*p;
|
|
ssize_t
|
y;
|
|
/*
|
Determine the percent of image background for this edge.
|
*/
|
switch (gravity)
|
{
|
case NorthWestGravity:
|
case NorthGravity:
|
default:
|
{
|
p=GetCacheViewVirtualPixels(image_view,0,0,1,1,exception);
|
break;
|
}
|
case NorthEastGravity:
|
case EastGravity:
|
{
|
p=GetCacheViewVirtualPixels(image_view,(ssize_t) image->columns-1,0,1,1,
|
exception);
|
break;
|
}
|
case SouthEastGravity:
|
case SouthGravity:
|
{
|
p=GetCacheViewVirtualPixels(image_view,(ssize_t) image->columns-1,
|
(ssize_t) image->rows-1,1,1,exception);
|
break;
|
}
|
case SouthWestGravity:
|
case WestGravity:
|
{
|
p=GetCacheViewVirtualPixels(image_view,0,(ssize_t) image->rows-1,1,1,
|
exception);
|
break;
|
}
|
}
|
GetPixelInfoPixel(image,p,&background);
|
edge_geometry.width=width;
|
edge_geometry.height=height;
|
edge_geometry.x=x_offset;
|
edge_geometry.y=y_offset;
|
GravityAdjustGeometry(image->columns,image->rows,gravity,&edge_geometry);
|
edge_image=CropImage(image,&edge_geometry,exception);
|
if (edge_image == (Image *) NULL)
|
return(0.0);
|
factor=0.0;
|
edge_view=AcquireVirtualCacheView(edge_image,exception);
|
for (y=0; y < (ssize_t) edge_image->rows; y++)
|
{
|
register ssize_t
|
x;
|
|
p=GetCacheViewVirtualPixels(edge_view,0,y,edge_image->columns,1,exception);
|
if (p == (const Quantum *) NULL)
|
break;
|
for (x=0; x < (ssize_t) edge_image->columns; x++)
|
{
|
GetPixelInfoPixel(edge_image,p,&pixel);
|
if (IsFuzzyEquivalencePixelInfo(&pixel,&background) == MagickFalse)
|
factor++;
|
p+=GetPixelChannels(edge_image);
|
}
|
}
|
factor/=((double) edge_image->columns*edge_image->rows);
|
edge_view=DestroyCacheView(edge_view);
|
edge_image=DestroyImage(edge_image);
|
return(factor);
|
}
|
|
static inline double GetMinEdgeBackgroundFactor(const EdgeInfo *edge)
|
{
|
double
|
factor;
|
|
factor=MagickMin(MagickMin(MagickMin(edge->left,edge->right),edge->top),
|
edge->bottom);
|
return(factor);
|
}
|
|
MagickExport RectangleInfo GetImageBoundingBox(const Image *image,
|
ExceptionInfo *exception)
|
{
|
CacheView
|
*edge_view;
|
|
const char
|
*artifact;
|
|
double
|
background_factor,
|
percent_background;
|
|
EdgeInfo
|
edge,
|
vertex;
|
|
Image
|
*edge_image;
|
|
RectangleInfo
|
bounds;
|
|
/*
|
Get the image bounding box.
|
*/
|
assert(image != (Image *) NULL);
|
assert(image->signature == MagickCoreSignature);
|
if (image->debug != MagickFalse)
|
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
|
SetGeometry(image,&bounds);
|
edge_image=CloneImage(image,0,0,MagickTrue,exception);
|
if (edge_image == (Image *) NULL)
|
return(bounds);
|
(void) ParseAbsoluteGeometry("0x0+0+0",&edge_image->page);
|
memset(&vertex,0,sizeof(vertex));
|
edge_view=AcquireVirtualCacheView(edge_image,exception);
|
edge.left=GetEdgeBackgroundFactor(edge_image,edge_view,WestGravity,
|
1,0,0,0,exception);
|
edge.right=GetEdgeBackgroundFactor(edge_image,edge_view,EastGravity,
|
1,0,0,0,exception);
|
edge.top=GetEdgeBackgroundFactor(edge_image,edge_view,NorthGravity,
|
0,1,0,0,exception);
|
edge.bottom=GetEdgeBackgroundFactor(edge_image,edge_view,SouthGravity,
|
0,1,0,0,exception);
|
percent_background=1.0;
|
artifact=GetImageArtifact(edge_image,"trim:percent-background");
|
if (artifact != (const char *) NULL)
|
percent_background=StringToDouble(artifact,(char **) NULL)/100.0;
|
percent_background=MagickMin(MagickMax(1.0-percent_background,MagickEpsilon),
|
1.0);
|
background_factor=GetMinEdgeBackgroundFactor(&edge);
|
for ( ; background_factor < percent_background;
|
background_factor=GetMinEdgeBackgroundFactor(&edge))
|
{
|
if ((bounds.width == 0) || (bounds.height == 0))
|
break;
|
if (fabs(edge.left-background_factor) < MagickEpsilon)
|
{
|
/*
|
Trim left edge.
|
*/
|
vertex.left++;
|
bounds.width--;
|
edge.left=GetEdgeBackgroundFactor(edge_image,edge_view,
|
NorthWestGravity,1,bounds.height,(ssize_t) vertex.left,(ssize_t)
|
vertex.top,exception);
|
edge.top=GetEdgeBackgroundFactor(edge_image,edge_view,
|
NorthWestGravity,bounds.width,1,(ssize_t) vertex.left,(ssize_t)
|
vertex.top,exception);
|
edge.bottom=GetEdgeBackgroundFactor(edge_image,edge_view,
|
SouthWestGravity,bounds.width,1,(ssize_t) vertex.left,(ssize_t)
|
vertex.bottom,exception);
|
continue;
|
}
|
if (fabs(edge.right-background_factor) < MagickEpsilon)
|
{
|
/*
|
Trim right edge.
|
*/
|
vertex.right++;
|
bounds.width--;
|
edge.right=GetEdgeBackgroundFactor(edge_image,edge_view,
|
NorthEastGravity,1,bounds.height,(ssize_t) vertex.right,(ssize_t)
|
vertex.top,exception);
|
edge.top=GetEdgeBackgroundFactor(edge_image,edge_view,
|
NorthWestGravity,bounds.width,1,(ssize_t) vertex.left,(ssize_t)
|
vertex.top,exception);
|
edge.bottom=GetEdgeBackgroundFactor(edge_image,edge_view,
|
SouthWestGravity,bounds.width,1,(ssize_t) vertex.left,(ssize_t)
|
vertex.bottom,exception);
|
continue;
|
}
|
if (fabs(edge.top-background_factor) < MagickEpsilon)
|
{
|
/*
|
Trim top edge.
|
*/
|
vertex.top++;
|
bounds.height--;
|
edge.left=GetEdgeBackgroundFactor(edge_image,edge_view,
|
NorthWestGravity,1,bounds.height,(ssize_t) vertex.left,(ssize_t)
|
vertex.top,exception);
|
edge.right=GetEdgeBackgroundFactor(edge_image,edge_view,
|
NorthEastGravity,1,bounds.height,(ssize_t) vertex.right,(ssize_t)
|
vertex.top,exception);
|
edge.top=GetEdgeBackgroundFactor(edge_image,edge_view,
|
NorthWestGravity,bounds.width,1,(ssize_t) vertex.left,(ssize_t)
|
vertex.top,exception);
|
continue;
|
}
|
if (fabs(edge.bottom-background_factor) < MagickEpsilon)
|
{
|
/*
|
Trim bottom edge.
|
*/
|
vertex.bottom++;
|
bounds.height--;
|
edge.left=GetEdgeBackgroundFactor(edge_image,edge_view,
|
NorthWestGravity,1,bounds.height,(ssize_t) vertex.left,(ssize_t)
|
vertex.top,exception);
|
edge.right=GetEdgeBackgroundFactor(edge_image,edge_view,
|
NorthEastGravity,1,bounds.height,(ssize_t) vertex.right,(ssize_t)
|
vertex.top,exception);
|
edge.bottom=GetEdgeBackgroundFactor(edge_image,edge_view,
|
SouthWestGravity,bounds.width,1,(ssize_t) vertex.left,(ssize_t)
|
vertex.bottom,exception);
|
continue;
|
}
|
}
|
edge_view=DestroyCacheView(edge_view);
|
edge_image=DestroyImage(edge_image);
|
bounds.x=(ssize_t) vertex.left;
|
bounds.y=(ssize_t) vertex.top;
|
if ((bounds.width == 0) || (bounds.height == 0))
|
(void) ThrowMagickException(exception,GetMagickModule(),OptionWarning,
|
"GeometryDoesNotContainImage","`%s'",image->filename);
|
return(bounds);
|
}
|
|
/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
% G e t I m a g e D e p t h %
|
% %
|
% %
|
% %
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%
|
% GetImageDepth() returns the depth of a particular image channel.
|
%
|
% The format of the GetImageDepth method is:
|
%
|
% size_t GetImageDepth(const Image *image,ExceptionInfo *exception)
|
%
|
% A description of each parameter follows:
|
%
|
% o image: the image.
|
%
|
% o exception: return any errors or warnings in this structure.
|
%
|
*/
|
MagickExport size_t GetImageDepth(const Image *image,ExceptionInfo *exception)
|
{
|
CacheView
|
*image_view;
|
|
MagickBooleanType
|
status;
|
|
register ssize_t
|
i;
|
|
size_t
|
*current_depth,
|
depth,
|
number_threads;
|
|
ssize_t
|
y;
|
|
/*
|
Compute image depth.
|
*/
|
assert(image != (Image *) NULL);
|
assert(image->signature == MagickCoreSignature);
|
if (image->debug != MagickFalse)
|
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
|
number_threads=(size_t) GetMagickResourceLimit(ThreadResource);
|
current_depth=(size_t *) AcquireQuantumMemory(number_threads,
|
sizeof(*current_depth));
|
if (current_depth == (size_t *) NULL)
|
ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
|
status=MagickTrue;
|
for (i=0; i < (ssize_t) number_threads; i++)
|
current_depth[i]=1;
|
if ((image->storage_class == PseudoClass) &&
|
(image->alpha_trait == UndefinedPixelTrait))
|
{
|
for (i=0; i < (ssize_t) image->colors; i++)
|
{
|
const int
|
id = GetOpenMPThreadId();
|
|
while (current_depth[id] < MAGICKCORE_QUANTUM_DEPTH)
|
{
|
MagickBooleanType
|
atDepth;
|
|
QuantumAny
|
range;
|
|
atDepth=MagickTrue;
|
range=GetQuantumRange(current_depth[id]);
|
if ((GetPixelRedTraits(image) & UpdatePixelTrait) != 0)
|
if (IsPixelAtDepth(ClampToQuantum(image->colormap[i].red),range) == MagickFalse)
|
atDepth=MagickFalse;
|
if ((atDepth != MagickFalse) &&
|
(GetPixelGreenTraits(image) & UpdatePixelTrait) != 0)
|
if (IsPixelAtDepth(ClampToQuantum(image->colormap[i].green),range) == MagickFalse)
|
atDepth=MagickFalse;
|
if ((atDepth != MagickFalse) &&
|
(GetPixelBlueTraits(image) & UpdatePixelTrait) != 0)
|
if (IsPixelAtDepth(ClampToQuantum(image->colormap[i].blue),range) == MagickFalse)
|
atDepth=MagickFalse;
|
if ((atDepth != MagickFalse))
|
break;
|
current_depth[id]++;
|
}
|
}
|
depth=current_depth[0];
|
for (i=1; i < (ssize_t) number_threads; i++)
|
if (depth < current_depth[i])
|
depth=current_depth[i];
|
current_depth=(size_t *) RelinquishMagickMemory(current_depth);
|
return(depth);
|
}
|
image_view=AcquireVirtualCacheView(image,exception);
|
#if !defined(MAGICKCORE_HDRI_SUPPORT)
|
if ((1UL*QuantumRange) <= MaxMap)
|
{
|
size_t
|
*depth_map;
|
|
/*
|
Scale pixels to desired (optimized with depth map).
|
*/
|
depth_map=(size_t *) AcquireQuantumMemory(MaxMap+1,sizeof(*depth_map));
|
if (depth_map == (size_t *) NULL)
|
ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
|
for (i=0; i <= (ssize_t) MaxMap; i++)
|
{
|
unsigned int
|
depth;
|
|
for (depth=1; depth < MAGICKCORE_QUANTUM_DEPTH; depth++)
|
{
|
Quantum
|
pixel;
|
|
QuantumAny
|
range;
|
|
range=GetQuantumRange(depth);
|
pixel=(Quantum) i;
|
if (pixel == ScaleAnyToQuantum(ScaleQuantumToAny(pixel,range),range))
|
break;
|
}
|
depth_map[i]=depth;
|
}
|
#if defined(MAGICKCORE_OPENMP_SUPPORT)
|
#pragma omp parallel for schedule(static) shared(status) \
|
magick_number_threads(image,image,image->rows,1)
|
#endif
|
for (y=0; y < (ssize_t) image->rows; y++)
|
{
|
const int
|
id = GetOpenMPThreadId();
|
|
register const Quantum
|
*magick_restrict p;
|
|
register ssize_t
|
x;
|
|
if (status == MagickFalse)
|
continue;
|
p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);
|
if (p == (const Quantum *) NULL)
|
continue;
|
for (x=0; x < (ssize_t) image->columns; x++)
|
{
|
register ssize_t
|
i;
|
|
for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
|
{
|
PixelChannel channel = GetPixelChannelChannel(image,i);
|
PixelTrait traits = GetPixelChannelTraits(image,channel);
|
if ((traits & UpdatePixelTrait) == 0)
|
continue;
|
if (depth_map[ScaleQuantumToMap(p[i])] > current_depth[id])
|
current_depth[id]=depth_map[ScaleQuantumToMap(p[i])];
|
}
|
p+=GetPixelChannels(image);
|
}
|
if (current_depth[id] == MAGICKCORE_QUANTUM_DEPTH)
|
status=MagickFalse;
|
}
|
image_view=DestroyCacheView(image_view);
|
depth=current_depth[0];
|
for (i=1; i < (ssize_t) number_threads; i++)
|
if (depth < current_depth[i])
|
depth=current_depth[i];
|
depth_map=(size_t *) RelinquishMagickMemory(depth_map);
|
current_depth=(size_t *) RelinquishMagickMemory(current_depth);
|
return(depth);
|
}
|
#endif
|
/*
|
Compute pixel depth.
|
*/
|
#if defined(MAGICKCORE_OPENMP_SUPPORT)
|
#pragma omp parallel for schedule(static) shared(status) \
|
magick_number_threads(image,image,image->rows,1)
|
#endif
|
for (y=0; y < (ssize_t) image->rows; y++)
|
{
|
const int
|
id = GetOpenMPThreadId();
|
|
register const Quantum
|
*magick_restrict p;
|
|
register ssize_t
|
x;
|
|
if (status == MagickFalse)
|
continue;
|
p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);
|
if (p == (const Quantum *) NULL)
|
continue;
|
for (x=0; x < (ssize_t) image->columns; x++)
|
{
|
register ssize_t
|
i;
|
|
for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
|
{
|
PixelChannel
|
channel;
|
|
PixelTrait
|
traits;
|
|
channel=GetPixelChannelChannel(image,i);
|
traits=GetPixelChannelTraits(image,channel);
|
if ((traits & UpdatePixelTrait) == 0)
|
continue;
|
while (current_depth[id] < MAGICKCORE_QUANTUM_DEPTH)
|
{
|
QuantumAny
|
range;
|
|
range=GetQuantumRange(current_depth[id]);
|
if (p[i] == ScaleAnyToQuantum(ScaleQuantumToAny(p[i],range),range))
|
break;
|
current_depth[id]++;
|
}
|
}
|
p+=GetPixelChannels(image);
|
}
|
if (current_depth[id] == MAGICKCORE_QUANTUM_DEPTH)
|
status=MagickFalse;
|
}
|
image_view=DestroyCacheView(image_view);
|
depth=current_depth[0];
|
for (i=1; i < (ssize_t) number_threads; i++)
|
if (depth < current_depth[i])
|
depth=current_depth[i];
|
current_depth=(size_t *) RelinquishMagickMemory(current_depth);
|
return(depth);
|
}
|
|
/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
% G e t I m a g e Q u a n t u m D e p t h %
|
% %
|
% %
|
% %
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%
|
% GetImageQuantumDepth() returns the depth of the image rounded to a legal
|
% quantum depth: 8, 16, or 32.
|
%
|
% The format of the GetImageQuantumDepth method is:
|
%
|
% size_t GetImageQuantumDepth(const Image *image,
|
% const MagickBooleanType constrain)
|
%
|
% A description of each parameter follows:
|
%
|
% o image: the image.
|
%
|
% o constrain: A value other than MagickFalse, constrains the depth to
|
% a maximum of MAGICKCORE_QUANTUM_DEPTH.
|
%
|
*/
|
MagickExport size_t GetImageQuantumDepth(const Image *image,
|
const MagickBooleanType constrain)
|
{
|
size_t
|
depth;
|
|
depth=image->depth;
|
if (depth <= 8)
|
depth=8;
|
else
|
if (depth <= 16)
|
depth=16;
|
else
|
if (depth <= 32)
|
depth=32;
|
else
|
if (depth <= 64)
|
depth=64;
|
if (constrain != MagickFalse)
|
depth=(size_t) MagickMin((double) depth,(double) MAGICKCORE_QUANTUM_DEPTH);
|
return(depth);
|
}
|
|
/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
% G e t I m a g e T y p e %
|
% %
|
% %
|
% %
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%
|
% GetImageType() returns the type of image:
|
%
|
% Bilevel Grayscale GrayscaleMatte
|
% Palette PaletteMatte TrueColor
|
% TrueColorMatte ColorSeparation ColorSeparationMatte
|
%
|
% The format of the GetImageType method is:
|
%
|
% ImageType GetImageType(const Image *image)
|
%
|
% A description of each parameter follows:
|
%
|
% o image: the image.
|
%
|
*/
|
MagickExport ImageType GetImageType(const Image *image)
|
{
|
assert(image != (Image *) NULL);
|
assert(image->signature == MagickCoreSignature);
|
if (image->colorspace == CMYKColorspace)
|
{
|
if (image->alpha_trait == UndefinedPixelTrait)
|
return(ColorSeparationType);
|
return(ColorSeparationAlphaType);
|
}
|
if (IsImageMonochrome(image) != MagickFalse)
|
return(BilevelType);
|
if (IsImageGray(image) != MagickFalse)
|
{
|
if (image->alpha_trait != UndefinedPixelTrait)
|
return(GrayscaleAlphaType);
|
return(GrayscaleType);
|
}
|
if (IsPaletteImage(image) != MagickFalse)
|
{
|
if (image->alpha_trait != UndefinedPixelTrait)
|
return(PaletteAlphaType);
|
return(PaletteType);
|
}
|
if (image->alpha_trait != UndefinedPixelTrait)
|
return(TrueColorAlphaType);
|
return(TrueColorType);
|
}
|
|
/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
% I d e n t i f y I m a g e G r a y %
|
% %
|
% %
|
% %
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%
|
% IdentifyImageGray() returns grayscale if all the pixels in the image have
|
% the same red, green, and blue intensities, and bi-level is the intensity is
|
% either 0 or QuantumRange. Otherwise undefined is returned.
|
%
|
% The format of the IdentifyImageGray method is:
|
%
|
% ImageType IdentifyImageGray(const Image *image,ExceptionInfo *exception)
|
%
|
% A description of each parameter follows:
|
%
|
% o image: the image.
|
%
|
% o exception: return any errors or warnings in this structure.
|
%
|
*/
|
MagickExport ImageType IdentifyImageGray(const Image *image,
|
ExceptionInfo *exception)
|
{
|
CacheView
|
*image_view;
|
|
ImageType
|
type;
|
|
register const Quantum
|
*p;
|
|
register ssize_t
|
x;
|
|
ssize_t
|
y;
|
|
assert(image != (Image *) NULL);
|
assert(image->signature == MagickCoreSignature);
|
if (image->debug != MagickFalse)
|
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
|
if ((image->type == BilevelType) || (image->type == GrayscaleType) ||
|
(image->type == GrayscaleAlphaType))
|
return(image->type);
|
if (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse)
|
return(UndefinedType);
|
type=BilevelType;
|
image_view=AcquireVirtualCacheView(image,exception);
|
for (y=0; y < (ssize_t) image->rows; y++)
|
{
|
p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);
|
if (p == (const Quantum *) NULL)
|
break;
|
for (x=0; x < (ssize_t) image->columns; x++)
|
{
|
if (IsPixelGray(image,p) == MagickFalse)
|
{
|
type=UndefinedType;
|
break;
|
}
|
if ((type == BilevelType) &&
|
(IsPixelMonochrome(image,p) == MagickFalse))
|
type=GrayscaleType;
|
p+=GetPixelChannels(image);
|
}
|
if (type == UndefinedType)
|
break;
|
}
|
image_view=DestroyCacheView(image_view);
|
if ((type == GrayscaleType) && (image->alpha_trait != UndefinedPixelTrait))
|
type=GrayscaleAlphaType;
|
return(type);
|
}
|
|
/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
% I d e n t i f y I m a g e M o n o c h r o m e %
|
% %
|
% %
|
% %
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%
|
% IdentifyImageMonochrome() returns MagickTrue if all the pixels in the image
|
% have the same red, green, and blue intensities and the intensity is either
|
% 0 or QuantumRange.
|
%
|
% The format of the IdentifyImageMonochrome method is:
|
%
|
% MagickBooleanType IdentifyImageMonochrome(const Image *image,
|
% ExceptionInfo *exception)
|
%
|
% A description of each parameter follows:
|
%
|
% o image: the image.
|
%
|
% o exception: return any errors or warnings in this structure.
|
%
|
*/
|
MagickExport MagickBooleanType IdentifyImageMonochrome(const Image *image,
|
ExceptionInfo *exception)
|
{
|
CacheView
|
*image_view;
|
|
MagickBooleanType
|
bilevel;
|
|
register ssize_t
|
x;
|
|
register const Quantum
|
*p;
|
|
ssize_t
|
y;
|
|
assert(image != (Image *) NULL);
|
assert(image->signature == MagickCoreSignature);
|
if (image->debug != MagickFalse)
|
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
|
if (image->type == BilevelType)
|
return(MagickTrue);
|
if (IssRGBCompatibleColorspace(image->colorspace) == MagickFalse)
|
return(MagickFalse);
|
bilevel=MagickTrue;
|
image_view=AcquireVirtualCacheView(image,exception);
|
for (y=0; y < (ssize_t) image->rows; y++)
|
{
|
p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception);
|
if (p == (const Quantum *) NULL)
|
break;
|
for (x=0; x < (ssize_t) image->columns; x++)
|
{
|
if (IsPixelMonochrome(image,p) == MagickFalse)
|
{
|
bilevel=MagickFalse;
|
break;
|
}
|
p+=GetPixelChannels(image);
|
}
|
if (bilevel == MagickFalse)
|
break;
|
}
|
image_view=DestroyCacheView(image_view);
|
return(bilevel);
|
}
|
|
/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
% I d e n t i f y I m a g e T y p e %
|
% %
|
% %
|
% %
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%
|
% IdentifyImageType() returns the potential type of image:
|
%
|
% Bilevel Grayscale GrayscaleMatte
|
% Palette PaletteMatte TrueColor
|
% TrueColorMatte ColorSeparation ColorSeparationMatte
|
%
|
% To ensure the image type matches its potential, use SetImageType():
|
%
|
% (void) SetImageType(image,IdentifyImageType(image,exception),exception);
|
%
|
% The format of the IdentifyImageType method is:
|
%
|
% ImageType IdentifyImageType(const Image *image,ExceptionInfo *exception)
|
%
|
% A description of each parameter follows:
|
%
|
% o image: the image.
|
%
|
% o exception: return any errors or warnings in this structure.
|
%
|
*/
|
MagickExport ImageType IdentifyImageType(const Image *image,
|
ExceptionInfo *exception)
|
{
|
assert(image != (Image *) NULL);
|
assert(image->signature == MagickCoreSignature);
|
if (image->debug != MagickFalse)
|
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
|
if (image->colorspace == CMYKColorspace)
|
{
|
if (image->alpha_trait == UndefinedPixelTrait)
|
return(ColorSeparationType);
|
return(ColorSeparationAlphaType);
|
}
|
if (IdentifyImageMonochrome(image,exception) != MagickFalse)
|
return(BilevelType);
|
if (IdentifyImageGray(image,exception) != UndefinedType)
|
{
|
if (image->alpha_trait != UndefinedPixelTrait)
|
return(GrayscaleAlphaType);
|
return(GrayscaleType);
|
}
|
if (IdentifyPaletteImage(image,exception) != MagickFalse)
|
{
|
if (image->alpha_trait != UndefinedPixelTrait)
|
return(PaletteAlphaType);
|
return(PaletteType);
|
}
|
if (image->alpha_trait != UndefinedPixelTrait)
|
return(TrueColorAlphaType);
|
return(TrueColorType);
|
}
|
|
/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
% I s I m a g e G r a y %
|
% %
|
% %
|
% %
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%
|
% IsImageGray() returns MagickTrue if the type of the image is grayscale or
|
% bi-level.
|
%
|
% The format of the IsImageGray method is:
|
%
|
% MagickBooleanType IsImageGray(const Image *image)
|
%
|
% A description of each parameter follows:
|
%
|
% o image: the image.
|
%
|
*/
|
MagickExport MagickBooleanType IsImageGray(const Image *image)
|
{
|
assert(image != (Image *) NULL);
|
assert(image->signature == MagickCoreSignature);
|
if ((image->type == BilevelType) || (image->type == GrayscaleType) ||
|
(image->type == GrayscaleAlphaType))
|
return(MagickTrue);
|
return(MagickFalse);
|
}
|
|
/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
% I s I m a g e M o n o c h r o m e %
|
% %
|
% %
|
% %
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%
|
% IsImageMonochrome() returns MagickTrue if type of the image is bi-level.
|
%
|
% The format of the IsImageMonochrome method is:
|
%
|
% MagickBooleanType IsImageMonochrome(const Image *image)
|
%
|
% A description of each parameter follows:
|
%
|
% o image: the image.
|
%
|
*/
|
MagickExport MagickBooleanType IsImageMonochrome(const Image *image)
|
{
|
assert(image != (Image *) NULL);
|
assert(image->signature == MagickCoreSignature);
|
if (image->type == BilevelType)
|
return(MagickTrue);
|
return(MagickFalse);
|
}
|
|
/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
% I s I m a g e O p a q u e %
|
% %
|
% %
|
% %
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%
|
% IsImageOpaque() returns MagickTrue if none of the pixels in the image have
|
% an alpha value other than OpaqueAlpha (QuantumRange).
|
%
|
% Will return true immediatally is alpha channel is not available.
|
%
|
% The format of the IsImageOpaque method is:
|
%
|
% MagickBooleanType IsImageOpaque(const Image *image,
|
% ExceptionInfo *exception)
|
%
|
% A description of each parameter follows:
|
%
|
% o image: the image.
|
%
|
% o exception: return any errors or warnings in this structure.
|
%
|
*/
|
MagickExport MagickBooleanType IsImageOpaque(const Image *image,
|
ExceptionInfo *exception)
|
{
|
CacheView
|
*image_view;
|
|
register const Quantum
|
*p;
|
|
register ssize_t
|
x;
|
|
ssize_t
|
y;
|
|
/*
|
Determine if image is opaque.
|
*/
|
assert(image != (Image *) NULL);
|
assert(image->signature == MagickCoreSignature);
|
if (image->debug != MagickFalse)
|
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
|
if (image->alpha_trait == UndefinedPixelTrait)
|
return(MagickTrue);
|
image_view=AcquireVirtualCacheView(image,exception);
|
for (y=0; y < (ssize_t) image->rows; y++)
|
{
|
p=GetCacheViewVirtualPixels(image_view,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) != OpaqueAlpha)
|
break;
|
p+=GetPixelChannels(image);
|
}
|
if (x < (ssize_t) image->columns)
|
break;
|
}
|
image_view=DestroyCacheView(image_view);
|
return(y < (ssize_t) image->rows ? MagickFalse : MagickTrue);
|
}
|
|
/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
% S e t I m a g e D e p t h %
|
% %
|
% %
|
% %
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%
|
% SetImageDepth() sets the depth of the image.
|
%
|
% The format of the SetImageDepth method is:
|
%
|
% MagickBooleanType SetImageDepth(Image *image,const size_t depth,
|
% ExceptionInfo *exception)
|
%
|
% A description of each parameter follows:
|
%
|
% o image: the image.
|
%
|
% o channel: the channel.
|
%
|
% o depth: the image depth.
|
%
|
% o exception: return any errors or warnings in this structure.
|
%
|
*/
|
MagickExport MagickBooleanType SetImageDepth(Image *image,
|
const size_t depth,ExceptionInfo *exception)
|
{
|
CacheView
|
*image_view;
|
|
MagickBooleanType
|
status;
|
|
QuantumAny
|
range;
|
|
ssize_t
|
y;
|
|
assert(image != (Image *) NULL);
|
if (image->debug != MagickFalse)
|
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
|
assert(image->signature == MagickCoreSignature);
|
if (depth >= MAGICKCORE_QUANTUM_DEPTH)
|
{
|
image->depth=depth;
|
return(MagickTrue);
|
}
|
range=GetQuantumRange(depth);
|
if (image->storage_class == PseudoClass)
|
{
|
register ssize_t
|
i;
|
|
#if defined(MAGICKCORE_OPENMP_SUPPORT)
|
#pragma omp parallel for schedule(static) shared(status) \
|
magick_number_threads(image,image,image->colors,1)
|
#endif
|
for (i=0; i < (ssize_t) image->colors; i++)
|
{
|
if ((GetPixelRedTraits(image) & UpdatePixelTrait) != 0)
|
image->colormap[i].red=(double) ScaleAnyToQuantum(ScaleQuantumToAny(
|
ClampPixel(image->colormap[i].red),range),range);
|
if ((GetPixelGreenTraits(image) & UpdatePixelTrait) != 0)
|
image->colormap[i].green=(double) ScaleAnyToQuantum(ScaleQuantumToAny(
|
ClampPixel(image->colormap[i].green),range),range);
|
if ((GetPixelBlueTraits(image) & UpdatePixelTrait) != 0)
|
image->colormap[i].blue=(double) ScaleAnyToQuantum(ScaleQuantumToAny(
|
ClampPixel(image->colormap[i].blue),range),range);
|
if ((GetPixelAlphaTraits(image) & UpdatePixelTrait) != 0)
|
image->colormap[i].alpha=(double) ScaleAnyToQuantum(ScaleQuantumToAny(
|
ClampPixel(image->colormap[i].alpha),range),range);
|
}
|
}
|
status=MagickTrue;
|
image_view=AcquireAuthenticCacheView(image,exception);
|
#if !defined(MAGICKCORE_HDRI_SUPPORT)
|
if ((1UL*QuantumRange) <= MaxMap)
|
{
|
Quantum
|
*depth_map;
|
|
register ssize_t
|
i;
|
|
/*
|
Scale pixels to desired (optimized with depth map).
|
*/
|
depth_map=(Quantum *) AcquireQuantumMemory(MaxMap+1,sizeof(*depth_map));
|
if (depth_map == (Quantum *) NULL)
|
ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
|
for (i=0; i <= (ssize_t) MaxMap; i++)
|
depth_map[i]=ScaleAnyToQuantum(ScaleQuantumToAny((Quantum) i,range),
|
range);
|
#if defined(MAGICKCORE_OPENMP_SUPPORT)
|
#pragma omp parallel for schedule(static) shared(status) \
|
magick_number_threads(image,image,image->rows,1)
|
#endif
|
for (y=0; y < (ssize_t) image->rows; y++)
|
{
|
register ssize_t
|
x;
|
|
register Quantum
|
*magick_restrict q;
|
|
if (status == MagickFalse)
|
continue;
|
q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,
|
exception);
|
if (q == (Quantum *) NULL)
|
{
|
status=MagickFalse;
|
continue;
|
}
|
for (x=0; x < (ssize_t) image->columns; x++)
|
{
|
register ssize_t
|
i;
|
|
for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
|
{
|
PixelChannel
|
channel;
|
|
PixelTrait
|
traits;
|
|
channel=GetPixelChannelChannel(image,i);
|
traits=GetPixelChannelTraits(image,channel);
|
if ((traits & UpdatePixelTrait) == 0)
|
continue;
|
q[i]=depth_map[ScaleQuantumToMap(q[i])];
|
}
|
q+=GetPixelChannels(image);
|
}
|
if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
|
{
|
status=MagickFalse;
|
continue;
|
}
|
}
|
image_view=DestroyCacheView(image_view);
|
depth_map=(Quantum *) RelinquishMagickMemory(depth_map);
|
if (status != MagickFalse)
|
image->depth=depth;
|
return(status);
|
}
|
#endif
|
/*
|
Scale pixels to desired depth.
|
*/
|
#if defined(MAGICKCORE_OPENMP_SUPPORT)
|
#pragma omp parallel for schedule(static) shared(status) \
|
magick_number_threads(image,image,image->rows,1)
|
#endif
|
for (y=0; y < (ssize_t) image->rows; y++)
|
{
|
register ssize_t
|
x;
|
|
register Quantum
|
*magick_restrict q;
|
|
if (status == MagickFalse)
|
continue;
|
q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1,exception);
|
if (q == (Quantum *) NULL)
|
{
|
status=MagickFalse;
|
continue;
|
}
|
for (x=0; x < (ssize_t) image->columns; x++)
|
{
|
register ssize_t
|
i;
|
|
for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
|
{
|
PixelChannel
|
channel;
|
|
PixelTrait
|
traits;
|
|
channel=GetPixelChannelChannel(image,i);
|
traits=GetPixelChannelTraits(image,channel);
|
if ((traits & UpdatePixelTrait) == 0)
|
continue;
|
q[i]=ScaleAnyToQuantum(ScaleQuantumToAny(ClampPixel((MagickRealType)
|
q[i]),range),range);
|
}
|
q+=GetPixelChannels(image);
|
}
|
if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
|
{
|
status=MagickFalse;
|
continue;
|
}
|
}
|
image_view=DestroyCacheView(image_view);
|
if (status != MagickFalse)
|
image->depth=depth;
|
return(status);
|
}
|
|
/*
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
% %
|
% %
|
% %
|
% S e t I m a g e T y p e %
|
% %
|
% %
|
% %
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
%
|
% SetImageType() sets the type of image. Choose from these types:
|
%
|
% Bilevel Grayscale GrayscaleMatte
|
% Palette PaletteMatte TrueColor
|
% TrueColorMatte ColorSeparation ColorSeparationMatte
|
% OptimizeType
|
%
|
% The format of the SetImageType method is:
|
%
|
% MagickBooleanType SetImageType(Image *image,const ImageType type,
|
% ExceptionInfo *exception)
|
%
|
% A description of each parameter follows:
|
%
|
% o image: the image.
|
%
|
% o type: Image type.
|
%
|
% o exception: return any errors or warnings in this structure.
|
%
|
*/
|
MagickExport MagickBooleanType SetImageType(Image *image,const ImageType type,
|
ExceptionInfo *exception)
|
{
|
const char
|
*artifact;
|
|
ImageInfo
|
*image_info;
|
|
MagickBooleanType
|
status;
|
|
QuantizeInfo
|
*quantize_info;
|
|
assert(image != (Image *) NULL);
|
if (image->debug != MagickFalse)
|
(void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
|
assert(image->signature == MagickCoreSignature);
|
status=MagickTrue;
|
image_info=AcquireImageInfo();
|
image_info->dither=image->dither;
|
artifact=GetImageArtifact(image,"dither");
|
if (artifact != (const char *) NULL)
|
(void) SetImageOption(image_info,"dither",artifact);
|
switch (type)
|
{
|
case BilevelType:
|
{
|
status=TransformImageColorspace(image,GRAYColorspace,exception);
|
(void) NormalizeImage(image,exception);
|
quantize_info=AcquireQuantizeInfo(image_info);
|
quantize_info->number_colors=2;
|
quantize_info->colorspace=GRAYColorspace;
|
status=QuantizeImage(quantize_info,image,exception);
|
quantize_info=DestroyQuantizeInfo(quantize_info);
|
image->alpha_trait=UndefinedPixelTrait;
|
break;
|
}
|
case GrayscaleType:
|
{
|
status=TransformImageColorspace(image,GRAYColorspace,exception);
|
image->alpha_trait=UndefinedPixelTrait;
|
break;
|
}
|
case GrayscaleAlphaType:
|
{
|
status=TransformImageColorspace(image,GRAYColorspace,exception);
|
if (image->alpha_trait == UndefinedPixelTrait)
|
(void) SetImageAlphaChannel(image,OpaqueAlphaChannel,exception);
|
break;
|
}
|
case PaletteType:
|
{
|
status=TransformImageColorspace(image,sRGBColorspace,exception);
|
if ((image->storage_class == DirectClass) || (image->colors > 256))
|
{
|
quantize_info=AcquireQuantizeInfo(image_info);
|
quantize_info->number_colors=256;
|
status=QuantizeImage(quantize_info,image,exception);
|
quantize_info=DestroyQuantizeInfo(quantize_info);
|
}
|
image->alpha_trait=UndefinedPixelTrait;
|
break;
|
}
|
case PaletteBilevelAlphaType:
|
{
|
ChannelType
|
channel_mask;
|
|
status=TransformImageColorspace(image,sRGBColorspace,exception);
|
if (image->alpha_trait == UndefinedPixelTrait)
|
(void) SetImageAlphaChannel(image,OpaqueAlphaChannel,exception);
|
channel_mask=SetImageChannelMask(image,AlphaChannel);
|
(void) BilevelImage(image,(double) QuantumRange/2.0,exception);
|
(void) SetImageChannelMask(image,channel_mask);
|
quantize_info=AcquireQuantizeInfo(image_info);
|
status=QuantizeImage(quantize_info,image,exception);
|
quantize_info=DestroyQuantizeInfo(quantize_info);
|
break;
|
}
|
case PaletteAlphaType:
|
{
|
status=TransformImageColorspace(image,sRGBColorspace,exception);
|
if (image->alpha_trait == UndefinedPixelTrait)
|
(void) SetImageAlphaChannel(image,OpaqueAlphaChannel,exception);
|
quantize_info=AcquireQuantizeInfo(image_info);
|
quantize_info->colorspace=TransparentColorspace;
|
status=QuantizeImage(quantize_info,image,exception);
|
quantize_info=DestroyQuantizeInfo(quantize_info);
|
break;
|
}
|
case TrueColorType:
|
{
|
status=TransformImageColorspace(image,sRGBColorspace,exception);
|
if (image->storage_class != DirectClass)
|
status=SetImageStorageClass(image,DirectClass,exception);
|
image->alpha_trait=UndefinedPixelTrait;
|
break;
|
}
|
case TrueColorAlphaType:
|
{
|
status=TransformImageColorspace(image,sRGBColorspace,exception);
|
if (image->storage_class != DirectClass)
|
status=SetImageStorageClass(image,DirectClass,exception);
|
if (image->alpha_trait == UndefinedPixelTrait)
|
(void) SetImageAlphaChannel(image,OpaqueAlphaChannel,exception);
|
break;
|
}
|
case ColorSeparationType:
|
{
|
status=TransformImageColorspace(image,CMYKColorspace,exception);
|
if (image->storage_class != DirectClass)
|
status=SetImageStorageClass(image,DirectClass,exception);
|
image->alpha_trait=UndefinedPixelTrait;
|
break;
|
}
|
case ColorSeparationAlphaType:
|
{
|
status=TransformImageColorspace(image,CMYKColorspace,exception);
|
if (image->storage_class != DirectClass)
|
status=SetImageStorageClass(image,DirectClass,exception);
|
if (image->alpha_trait == UndefinedPixelTrait)
|
status=SetImageAlphaChannel(image,OpaqueAlphaChannel,exception);
|
break;
|
}
|
case OptimizeType:
|
case UndefinedType:
|
break;
|
}
|
image_info=DestroyImageInfo(image_info);
|
if (status == MagickFalse)
|
return(status);
|
image->type=type;
|
return(MagickTrue);
|
}
|
