MagickCore 6.9.12
Data Structures | Macros | Typedefs | Functions
feature.c File Reference
#include "magick/studio.h"
#include "magick/animate.h"
#include "magick/artifact.h"
#include "magick/blob.h"
#include "magick/blob-private.h"
#include "magick/cache.h"
#include "magick/cache-private.h"
#include "magick/cache-view.h"
#include "magick/channel.h"
#include "magick/client.h"
#include "magick/color.h"
#include "magick/color-private.h"
#include "magick/colorspace.h"
#include "magick/colorspace-private.h"
#include "magick/composite.h"
#include "magick/composite-private.h"
#include "magick/compress.h"
#include "magick/constitute.h"
#include "magick/deprecate.h"
#include "magick/display.h"
#include "magick/draw.h"
#include "magick/enhance.h"
#include "magick/exception.h"
#include "magick/exception-private.h"
#include "magick/feature.h"
#include "magick/gem.h"
#include "magick/geometry.h"
#include "magick/list.h"
#include "magick/image-private.h"
#include "magick/magic.h"
#include "magick/magick.h"
#include "magick/matrix.h"
#include "magick/memory_.h"
#include "magick/module.h"
#include "magick/monitor.h"
#include "magick/monitor-private.h"
#include "magick/morphology-private.h"
#include "magick/option.h"
#include "magick/paint.h"
#include "magick/pixel-private.h"
#include "magick/profile.h"
#include "magick/property.h"
#include "magick/quantize.h"
#include "magick/random_.h"
#include "magick/resource_.h"
#include "magick/segment.h"
#include "magick/semaphore.h"
#include "magick/signature-private.h"
#include "magick/string_.h"
#include "magick/thread-private.h"
#include "magick/timer.h"
#include "magick/token.h"
#include "magick/utility.h"
#include "magick/version.h"
Include dependency graph for feature.c:

Go to the source code of this file.

Data Structures

struct  _CannyInfo
 

Macros

#define CannyEdgeImageTag   "CannyEdge/Image"
 
#define Log10Epsilon   (1.0e-11)
 
#define BoundingBox   "viewbox"
 
#define HoughLineImageTag   "HoughLine/Image"
 
#define MaxMeanShiftIterations   100
 
#define MeanShiftImageTag   "MeanShift/Image"
 

Typedefs

typedef struct _CannyInfo CannyInfo
 

Functions

static MagickBooleanType IsAuthenticPixel (const Image *image, const ssize_t x, const ssize_t y)
 
static MagickBooleanType TraceEdges (Image *edge_image, CacheView *edge_view, MatrixInfo *canny_cache, const ssize_t x, const ssize_t y, const double lower_threshold, ExceptionInfo *exception)
 
MagickExport Image * CannyEdgeImage (const Image *image, const double radius, const double sigma, const double lower_percent, const double upper_percent, ExceptionInfo *exception)
 
static double MagickLog10 (const double x)
 
MagickExport ChannelFeatures * GetImageChannelFeatures (const Image *image, const size_t distance, ExceptionInfo *exception)
 
static double MagickRound (double x)
 
static Image * RenderHoughLines (const ImageInfo *image_info, const size_t columns, const size_t rows, ExceptionInfo *exception)
 
MagickExport Image * HoughLineImage (const Image *image, const size_t width, const size_t height, const size_t threshold, ExceptionInfo *exception)
 
MagickExport Image * MeanShiftImage (const Image *image, const size_t width, const size_t height, const double color_distance, ExceptionInfo *exception)
 

Macro Definition Documentation

◆ BoundingBox

#define BoundingBox   "viewbox"

◆ CannyEdgeImageTag

#define CannyEdgeImageTag   "CannyEdge/Image"

◆ HoughLineImageTag

#define HoughLineImageTag   "HoughLine/Image"

◆ Log10Epsilon

#define Log10Epsilon   (1.0e-11)

◆ MaxMeanShiftIterations

#define MaxMeanShiftIterations   100

◆ MeanShiftImageTag

#define MeanShiftImageTag   "MeanShift/Image"

Typedef Documentation

◆ CannyInfo

typedef struct _CannyInfo CannyInfo

Function Documentation

◆ CannyEdgeImage()

MagickExport Image * CannyEdgeImage ( const Image *  image,
const double  radius,
const double  sigma,
const double  lower_percent,
const double  upper_percent,
ExceptionInfo *  exception 
)

Definition at line 242 of file feature.c.

References AcquireAuthenticCacheView(), AcquireKernelInfo(), AcquireMatrixInfo(), AcquireVirtualCacheView(), CannyEdgeImageTag, _Image::columns, ConvolveMorphology, DeactivateAlphaChannel, DefaultChannels, DestroyCacheView(), DestroyImage(), DestroyKernelInfo(), DestroyMatrixInfo(), _Image::filename, FormatLocaleString(), GetCacheViewAuthenticPixels(), GetCacheViewVirtualPixels(), GetMagickModule, GetMatrixElement(), GetPixelIntensity(), GRAYColorspace, _CannyInfo::intensity, IsEventLogging(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickEpsilon, MagickFalse, MagickTrue, _CannyInfo::magnitude, MaxTextExtent, MorphologyImageChannel(), _CannyInfo::orientation, _Image::progress_monitor, ResourceLimitError, _Image::rows, SetImageAlphaChannel(), SetImageProgress(), SetMatrixElement(), _ExceptionInfo::signature, _Image::signature, SyncCacheViewAuthenticPixels(), ThrowImageException, TraceEdges(), TraceEvent, and TransformImageColorspace().

◆ GetImageChannelFeatures()

MagickExport ChannelFeatures * GetImageChannelFeatures ( const Image *  image,
const size_t  distance,
ExceptionInfo *  exception 
)

Definition at line 630 of file feature.c.

References AcquireQuantumMemory(), AcquireVirtualCacheView(), _ChannelFeatures::angular_second_moment, BlackChannel, _LongPixelPacket::blue, BlueChannel, CMYKColorspace, _Image::colorspace, _Image::columns, CompositeChannels, _ChannelFeatures::contrast, _ChannelFeatures::correlation, DestroyCacheView(), _ChannelFeatures::difference_entropy, _ChannelFeatures::difference_variance, _ChannelFeatures::entropy, _Image::filename, GetCacheViewVirtualIndexQueue(), GetCacheViewVirtualPixels(), GetMagickModule, GetPixelBlue, GetPixelGreen, GetPixelIndex, GetPixelOpacity, GetPixelRed, _LongPixelPacket::green, GreenChannel, _LongPixelPacket::index, IndexChannel, _ChannelFeatures::inverse_difference_moment, IsEventLogging(), LogMagickEvent(), magick_restrict, MagickAbsoluteValue, MagickCoreSignature, MagickEpsilon, MagickFalse, MagickLog10(), MagickTrue, _Image::matte, _ChannelFeatures::maximum_correlation_coefficient, MaxMap, _ChannelFeatures::measure_of_correlation_1, _ChannelFeatures::measure_of_correlation_2, _LongPixelPacket::opacity, OpacityChannel, PerceptibleReciprocal(), _LongPixelPacket::red, RedChannel, RelinquishMagickMemory(), ResourceLimitError, ResourceLimitFatalError, _Image::rows, _Image::signature, _ChannelFeatures::sum_average, _ChannelFeatures::sum_entropy, _ChannelFeatures::sum_variance, ThrowFatalException, ThrowMagickException(), TraceEvent, and _ChannelFeatures::variance_sum_of_squares.

Referenced by IdentifyImage().

◆ HoughLineImage()

MagickExport Image * HoughLineImage ( const Image *  image,
const size_t  width,
const size_t  height,
const size_t  threshold,
ExceptionInfo *  exception 
)

Definition at line 1857 of file feature.c.

References AcquireImageInfo(), AcquireMatrixInfo(), AcquireUniqueFileResource(), AcquireVirtualCacheView(), AppendImageToList(), _Image::background_color, _ImageInfo::background_color, _Image::columns, DegreesToRadians(), DestroyCacheView(), DestroyImageInfo(), DestroyMatrixInfo(), _Image::filename, _ImageInfo::filename, FormatLocaleString(), GetCacheViewVirtualPixels(), GetFirstImageInList(), GetImageArtifact(), GetMagickModule, GetMatrixElement(), GetPixelIntensity(), HoughLineImageTag, IsEventLogging(), IsMagickTrue(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickFalse, MagickRound(), MagickTrue, MatrixToImage(), MaxTextExtent, NullMatrix(), _Image::progress_monitor, QuantumRange, RelinquishUniqueFileResource(), RenderHoughLines(), ResourceLimitError, _Image::rows, SetImageOption(), SetImageProgress(), SetMatrixElement(), _ExceptionInfo::signature, _Image::signature, ThrowImageException, TraceEvent, _PointInfo::x, _SegmentInfo::x1, _SegmentInfo::x2, _PointInfo::y, _SegmentInfo::y1, and _SegmentInfo::y2.

◆ IsAuthenticPixel()

static MagickBooleanType IsAuthenticPixel ( const Image *  image,
const ssize_t  x,
const ssize_t  y 
)
inlinestatic

Definition at line 148 of file feature.c.

References _Image::columns, MagickFalse, MagickTrue, and _Image::rows.

Referenced by TraceEdges().

◆ MagickLog10()

static double MagickLog10 ( const double  x)
inlinestatic

Definition at line 621 of file feature.c.

References Log10Epsilon.

Referenced by GetImageChannelFeatures().

◆ MagickRound()

static double MagickRound ( double  x)
inlinestatic

Definition at line 1784 of file feature.c.

Referenced by HoughLineImage(), and MeanShiftImage().

◆ MeanShiftImage()

MagickExport Image * MeanShiftImage ( const Image *  image,
const size_t  width,
const size_t  height,
const double  color_distance,
ExceptionInfo *  exception 
)

Definition at line 2184 of file feature.c.

References AcquireAuthenticCacheView(), AcquireVirtualCacheView(), _MagickPixelPacket::blue, _PixelPacket::blue, ClampToQuantum(), CloneImage(), _Image::columns, DestroyCacheView(), DestroyImage(), DirectClass, _Image::exception, _Image::filename, GetCacheViewAuthenticPixels(), GetCacheViewVirtualIndexQueue(), GetCacheViewVirtualPixels(), GetMagickModule, GetMagickPixelPacket(), GetOneCacheViewVirtualPixel(), _MagickPixelPacket::green, _PixelPacket::green, InheritException(), IsEventLogging(), LogMagickEvent(), magick_restrict, MagickCoreSignature, MagickFalse, MagickRound(), MagickTrue, MaxMeanShiftIterations, MeanShiftImageTag, _MagickPixelPacket::opacity, _PixelPacket::opacity, PerceptibleReciprocal(), _Image::progress_monitor, QuantumScale, _MagickPixelPacket::red, _PixelPacket::red, _Image::rows, SetImageProgress(), SetImageStorageClass(), SetMagickPixelPacket(), _ExceptionInfo::signature, _Image::signature, SyncCacheViewAuthenticPixels(), TraceEvent, _PointInfo::x, and _PointInfo::y.

◆ RenderHoughLines()

static Image * RenderHoughLines ( const ImageInfo *  image_info,
const size_t  columns,
const size_t  rows,
ExceptionInfo *  exception 
)
static

Definition at line 1794 of file feature.c.

References AcquireImage(), AcquireQuantumMemory(), _DrawInfo::affine, CloneDrawInfo(), CloseBlob(), _Image::columns, DefaultResolution, DestroyDrawInfo(), DestroyImageList(), DrawImage(), _Image::filename, FileToString(), GetBlobSize(), GetBlobStreamData(), GetFirstImageInList(), MagickFalse, OpenBlob(), _DrawInfo::primitive, ReadBinaryBlobMode, _Image::rows, SetImageBackgroundColor(), SetImageExtent(), _AffineMatrix::sx, _AffineMatrix::sy, _Image::x_resolution, and _Image::y_resolution.

Referenced by HoughLineImage().

◆ TraceEdges()

static MagickBooleanType TraceEdges ( Image *  edge_image,
CacheView *  edge_view,
MatrixInfo *  canny_cache,
const ssize_t  x,
const ssize_t  y,
const double  lower_threshold,
ExceptionInfo *  exception 
)
static

Definition at line 158 of file feature.c.

References _PixelPacket::blue, GetCacheViewAuthenticPixels(), GetMatrixElement(), GetPixelIntensity(), _PixelPacket::green, _CannyInfo::intensity, IsAuthenticPixel(), MagickFalse, MagickTrue, QuantumRange, _PixelPacket::red, SetMatrixElement(), SyncCacheViewAuthenticPixels(), _CannyInfo::x, and _CannyInfo::y.

Referenced by CannyEdgeImage().