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diff --git a/include/im_process_loc.h b/include/im_process_loc.h new file mode 100644 index 0000000..9c0531b --- /dev/null +++ b/include/im_process_loc.h @@ -0,0 +1,577 @@ +/** \file + * \brief Image Processing - Local Operations + * + * See Copyright Notice in im_lib.h + */ + +#ifndef __IM_PROCESS_LOC_H +#define __IM_PROCESS_LOC_H + +#include "im_image.h" + +#if defined(__cplusplus) +extern "C" { +#endif + + + +/** \defgroup resize Image Resize + * \par + * Operations to change the image size. + * \par + * See \ref im_process_loc.h + * \ingroup process */ + +/** Only reduze the image size using the given decimation order. \n + * Supported decimation orders: + * \li 0 - zero order (mean) + * \li 1 - first order (bilinear decimation) + * Images must be of the same type. If image type is IM_MAP or IM_BINARY, must use order=0. \n + * Returns zero if the counter aborted. + * + * \verbatim im.ProcessReduce(src_image: imImage, dst_image: imImage, order: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessReduceNew(image: imImage, order: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup resize */ +int imProcessReduce(const imImage* src_image, imImage* dst_image, int order); + +/** Change the image size using the given interpolation order. \n + * Supported interpolation orders: + * \li 0 - zero order (near neighborhood) + * \li 1 - first order (bilinear interpolation) + * \li 3 - third order (bicubic interpolation) + * Images must be of the same type. If image type is IM_MAP or IM_BINARY, must use order=0. \n + * Returns zero if the counter aborted. + * + * \verbatim im.ProcessResize(src_image: imImage, dst_image: imImage, order: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessResizeNew(image: imImage, order: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup resize */ +int imProcessResize(const imImage* src_image, imImage* dst_image, int order); + +/** Reduze the image area by 4 (w/2,h/2). \n + * Images must be of the same type. Destiny image size must be source image width/2, height/2. + * Can not operate on IM_MAP nor IM_BINARY images. + * + * \verbatim im.ProcessReduceBy4(src_image: imImage, dst_image: imImage) [in Lua 5] \endverbatim + * \verbatim im.ProcessReduceBy4New(image: imImage) -> new_image: imImage [in Lua 5] \endverbatim + * \ingroup resize */ +void imProcessReduceBy4(const imImage* src_image, imImage* dst_image); + +/** Extract a rectangular region from an image. \n + * Images must be of the same type. Destiny image size must be smaller than source image width-xmin, height-ymin. \n + * ymin and xmin must be >0 and <size. + * + * \verbatim im.ProcessCrop(src_image: imImage, dst_image: imImage, xmin: number, ymin: number) [in Lua 5] \endverbatim + * \verbatim im.ProcessCropNew(image: imImage, xmin: number, xmax: number, ymin: number, ymax: number) -> new_image: imImage [in Lua 5] \endverbatim + * \ingroup resize */ +void imProcessCrop(const imImage* src_image, imImage* dst_image, int xmin, int ymin); + +/** Insert a rectangular region in an image. \n + * Images must be of the same type. Region image size can be larger than source image. \n + * ymin and xmin must be >0 and <size. \n + * Source and destiny must be of the same size. Can be done in place. + * + * \verbatim im.ProcessInsert(src_image: imImage, region_image: imImage, dst_image: imImage, xmin: number, ymin: number) [in Lua 5] \endverbatim + * \verbatim im.ProcessInsertNew(image: imImage, region_image: imImage, xmin: number, ymin: number) -> new_image: imImage [in Lua 5] \endverbatim + * \ingroup resize */ +void imProcessInsert(const imImage* src_image, const imImage* region_image, imImage* dst_image, int xmin, int ymin); + +/** Increase the image size by adding pixels with zero value. \n + * Images must be of the same type. Destiny image size must be greatter than source image width+xmin, height+ymin. + * + * \verbatim im.ProcessAddMargins(src_image: imImage, dst_image: imImage, xmin: number, ymin: number) [in Lua 5] \endverbatim + * \verbatim im.ProcessAddMarginsNew(image: imImage, xmin: number, xmax: number, ymin: number, ymax: number) -> new_image: imImage [in Lua 5] \endverbatim + * \ingroup resize */ +void imProcessAddMargins(const imImage* src_image, imImage* dst_image, int xmin, int ymin); + + + +/** \defgroup geom Geometric Operations + * \par + * Operations to change the shape of the image. + * \par + * See \ref im_process_loc.h + * \ingroup process */ + +/** Calculates the size of the new image after rotation. + * + * \verbatim im.ProcessCalcRotateSize(width: number, height: number, cos0: number, sin0: number) [in Lua 5] \endverbatim + * \ingroup geom */ +void imProcessCalcRotateSize(int width, int height, int *new_width, int *new_height, double cos0, double sin0); + +/** Rotates the image using the given interpolation order (see \ref imProcessResize). \n + * Images must be of the same type. The destiny size can be calculated using \ref imProcessCalcRotateSize to fit the new image size, + * or can be any size, including the original size. The rotation is relative to the center of the image. \n + * Returns zero if the counter aborted. + * + * \verbatim im.ProcessRotate(src_image: imImage, dst_image: imImage, cos0: number, sin0: number, order: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessRotateNew(image: imImage, cos0: number, sin0: number, order: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup geom */ +int imProcessRotate(const imImage* src_image, imImage* dst_image, double cos0, double sin0, int order); + +/** Rotates the image using the given interpolation order (see \ref imProcessResize). \n + * Images must be of the same type. Destiny can have any size, including the original size. \n + * The rotation is relative to the reference point. But the result can be shifted to the origin. \n + * Returns zero if the counter aborted. + * + * \verbatim im.ProcessRotateRef(src_image: imImage, dst_image: imImage, cos0: number, sin0: number, x: number, y: number, to_origin: boolean, order: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessRotateRefNew(image: imImage, cos0: number, sin0: number, x: number, y: number, to_origin: boolean, order: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup geom */ +int imProcessRotateRef(const imImage* src_image, imImage* dst_image, double cos0, double sin0, int x, int y, int to_origin, int order); + +/** Rotates the image in 90 degrees counterclockwise or clockwise. Swap columns by lines. \n + * Images must be of the same type. Destiny width and height must be source height and width. \n + * Direction can be clockwise (1) or counter clockwise (-1). + * + * \verbatim im.ProcessRotate90(src_image: imImage, dst_image: imImage, dir_clockwise: boolean) [in Lua 5] \endverbatim + * \verbatim im.ProcessRotate90New(image: imImage, dir_clockwise: boolean) -> new_image: imImage [in Lua 5] \endverbatim + * \ingroup geom */ +void imProcessRotate90(const imImage* src_image, imImage* dst_image, int dir_clockwise); + +/** Rotates the image in 180 degrees. Swap columns and swap lines. \n + * Images must be of the same type and size. + * + * \verbatim im.ProcessRotate180(src_image: imImage, dst_image: imImage) [in Lua 5] \endverbatim + * \verbatim im.ProcessRotate180New(image: imImage) -> new_image: imImage [in Lua 5] \endverbatim + * \ingroup geom */ +void imProcessRotate180(const imImage* src_image, imImage* dst_image); + +/** Mirror the image in a horizontal flip. Swap columns. \n + * Images must be of the same type and size. + * Can be done in-place. + * + * \verbatim im.ProcessMirror(src_image: imImage, dst_image: imImage) [in Lua 5] \endverbatim + * \verbatim im.ProcessMirrorNew(image: imImage) -> new_image: imImage [in Lua 5] \endverbatim + * \ingroup geom */ +void imProcessMirror(const imImage* src_image, imImage* dst_image); + +/** Apply a vertical flip. Swap lines. \n + * Images must be of the same type and size. + * Can be done in-place. + * + * \verbatim im.ProcessFlip(src_image: imImage, dst_image: imImage) [in Lua 5] \endverbatim + * \verbatim im.ProcessFlipNew(image: imImage) -> new_image: imImage [in Lua 5] \endverbatim + * \ingroup geom */ +void imProcessFlip(const imImage* src_image, imImage* dst_image); + +/** Apply a radial distortion using the given interpolation order (see imProcessResize). \n + * Images must be of the same type and size. Returns zero if the counter aborted. + * + * \verbatim im.ProcessRadial(src_image: imImage, dst_image: imImage, k1: number, order: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessRadialNew(image: imImage, k1: number, order: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup geom */ +int imProcessRadial(const imImage* src_image, imImage* dst_image, float k1, int order); + +/** Apply a swirl distortion using the given interpolation order (see imProcessResize). \n + * Images must be of the same type and size. Returns zero if the counter aborted. + * + * \verbatim im.ProcessSwirl(src_image: imImage, dst_image: imImage, k: number, order: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessSwirlNew(image: imImage, k: number, order: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup geom */ +int imProcessSwirl(const imImage* src_image, imImage* dst_image, float k1, int order); + +/** Split the image in two images, one containing the odd lines and other containing the even lines. \n + * Images must be of the same type. Height of the output images must be half the height of the input image. + * If the height of the input image is odd then the first image must have height equals to half+1. + * + * \verbatim im.ProcessInterlaceSplit(src_image: imImage, dst_image1: imImage, dst_image2: imImage) [in Lua 5] \endverbatim + * \verbatim im.ProcessInterlaceSplitNew(image: imImage) -> new_image1: imImage, new_image2: imImage [in Lua 5] \endverbatim + * \ingroup geom */ +void imProcessInterlaceSplit(const imImage* src_image, imImage* dst_image1, imImage* dst_image2); + + + +/** \defgroup morphgray Morphology Operations for Gray Images + * \par + * See \ref im_process_loc.h + * \ingroup process */ + +/** Base gray morphology convolution. \n + * Supports all data types except IM_CFLOAT. Can be applied on color images. \n + * Kernel is always IM_INT. Use kernel size odd for better results. \n + * Use -1 for don't care positions in kernel. Kernel values are added to image values, then \n + * you can use the maximum or the minimum within the kernel area. \n + * No border extensions are used. + * All the gray morphology operations use this function. \n + * If the kernel image attribute "Description" exists it is used by the counter. + * + * \verbatim im.ProcessGrayMorphConvolve(src_image: imImage, dst_image: imImage, kernel: imImage, ismax: boolean) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessGrayMorphConvolveNew(image: imImage, kernel: imImage, ismax: boolean) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup morphgray */ +int imProcessGrayMorphConvolve(const imImage* src_image, imImage* dst_image, const imImage* kernel, int ismax); + +/** Gray morphology convolution with a kernel full of "0"s and use minimum value. + * + * \verbatim im.ProcessGrayMorphErode(src_image: imImage, dst_image: imImage, kernel_size: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessGrayMorphErodeNew(image: imImage, kernel_size: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup morphgray */ +int imProcessGrayMorphErode(const imImage* src_image, imImage* dst_image, int kernel_size); + +/** Gray morphology convolution with a kernel full of "0"s and use maximum value. + * + * \verbatim im.ProcessGrayMorphDilate(src_image: imImage, dst_image: imImage, kernel_size: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessGrayMorphDilateNew(image: imImage, kernel_size: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup morphgray */ +int imProcessGrayMorphDilate(const imImage* src_image, imImage* dst_image, int kernel_size); + +/** Erode+Dilate. + * + * \verbatim im.ProcessGrayMorphOpen(src_image: imImage, dst_image: imImage, kernel_size: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessGrayMorphOpenNew(image: imImage, kernel_size: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup morphgray */ +int imProcessGrayMorphOpen(const imImage* src_image, imImage* dst_image, int kernel_size); + +/** Dilate+Erode. + * + * \verbatim im.ProcessGrayMorphClose(src_image: imImage, dst_image: imImage, kernel_size: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessGrayMorphCloseNew(image: imImage, kernel_size: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup morphgray */ +int imProcessGrayMorphClose(const imImage* src_image, imImage* dst_image, int kernel_size); + +/** Open+Difference. + * + * \verbatim im.ProcessGrayMorphTopHat(src_image: imImage, dst_image: imImage, kernel_size: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessGrayMorphTopHatNew(image: imImage, kernel_size: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup morphgray */ +int imProcessGrayMorphTopHat(const imImage* src_image, imImage* dst_image, int kernel_size); + +/** Close+Difference. + * + * \verbatim im.ProcessGrayMorphWell(src_image: imImage, dst_image: imImage, kernel_size: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessGrayMorphWellNew(image: imImage, kernel_size: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup morphgray */ +int imProcessGrayMorphWell(const imImage* src_image, imImage* dst_image, int kernel_size); + +/** Difference(Erode, Dilate). + * + * \verbatim im.ProcessGrayMorphGradient(src_image: imImage, dst_image: imImage, kernel_size: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessGrayMorphGradientNew(image: imImage, kernel_size: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup morphgray */ +int imProcessGrayMorphGradient(const imImage* src_image, imImage* dst_image, int kernel_size); + + + +/** \defgroup morphbin Morphology Operations for Binary Images + * \par + * See \ref im_process_loc.h + * \ingroup process */ + +/** Base binary morphology convolution. \n + * Images are all IM_BINARY. Kernel is IM_INT, but values can be only 1, 0 or -1. Use kernel size odd for better results. \n + * Hit white means hit=1 and miss=0, or else hit=0 and miss=1. \n + * Use -1 for don't care positions in kernel. Kernel values are simply compared with image values. \n + * The operation can be repeated by a number of iterations. + * The border is zero extended. \n + * Almost all the binary morphology operations use this function.\n + * If the kernel image attribute "Description" exists it is used by the counter. + * + * \verbatim im.ProcessBinMorphConvolve(src_image: imImage, dst_image: imImage, kernel: imImage, hit_white: boolean, iter: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessBinMorphConvolveNew(image: imImage, kernel: imImage, hit_white: boolean, iter: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup morphbin */ +int imProcessBinMorphConvolve(const imImage* src_image, imImage* dst_image, const imImage* kernel, int hit_white, int iter); + +/** Binary morphology convolution with a kernel full of "1"s and hit white. + * + * \verbatim im.ProcessBinMorphErode(src_image: imImage, dst_image: imImage, kernel_size: number, iter: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessBinMorphErodeNew(image: imImage, kernel_size: number, iter: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup morphbin */ +int imProcessBinMorphErode(const imImage* src_image, imImage* dst_image, int kernel_size, int iter); + +/** Binary morphology convolution with a kernel full of "0"s and hit black. + * + * \verbatim im.ProcessBinMorphDilate(src_image: imImage, dst_image: imImage, kernel_size: number, iter: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessBinMorphDilateNew(image: imImage, kernel_size: number, iter: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup morphbin */ +int imProcessBinMorphDilate(const imImage* src_image, imImage* dst_image, int kernel_size, int iter); + +/** Erode+Dilate. + * When iteration is more than one it means Erode+Erode+Erode+...+Dilate+Dilate+Dilate+... + * + * \verbatim im.ProcessBinMorphOpen(src_image: imImage, dst_image: imImage, kernel_size: number, iter: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessBinMorphOpenNew(image: imImage, kernel_size: number, iter: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup morphbin */ +int imProcessBinMorphOpen(const imImage* src_image, imImage* dst_image, int kernel_size, int iter); + +/** Dilate+Erode. + * + * \verbatim im.ProcessBinMorphClose(src_image: imImage, dst_image: imImage, kernel_size: number, iter: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessBinMorphCloseNew(image: imImage, kernel_size: number, iter: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup morphbin */ +int imProcessBinMorphClose(const imImage* src_image, imImage* dst_image, int kernel_size, int iter); + +/** Erode+Difference. \n + * The difference from the source image is applied only once. + * + * \verbatim im.ProcessBinMorphOutline(src_image: imImage, dst_image: imImage, kernel_size: number, iter: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessBinMorphOutlineNew(image: imImage, kernel_size: number, iter: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup morphbin */ +int imProcessBinMorphOutline(const imImage* src_image, imImage* dst_image, int kernel_size, int iter); + +/** Thins the supplied binary image using Rosenfeld's parallel thinning algorithm. \n + * Reference: \n + * "Efficient Binary Image Thinning using Neighborhood Maps" \n + * by Joseph M. Cychosz, 3ksnn64@ecn.purdue.edu \n + * in "Graphics Gems IV", Academic Press, 1994 + * + * \verbatim im.ProcessBinMorphThin(src_image: imImage, dst_image: imImage) [in Lua 5] \endverbatim + * \verbatim im.ProcessBinMorphThinNew(image: imImage) -> new_image: imImage [in Lua 5] \endverbatim + * \ingroup morphbin */ +void imProcessBinMorphThin(const imImage* src_image, imImage* dst_image); + + + +/** \defgroup rank Rank Convolution Operations + * \par + * All the rank convolution use the same base function. Near the border the base function + * includes only the real image pixels in the rank. No border extensions are used. + * \par + * See \ref im_process_loc.h + * \ingroup process */ + +/** Rank convolution using the median value. \n + * Returns zero if the counter aborted. \n + * Supports all data types except IM_CFLOAT. Can be applied on color images. + * + * \verbatim im.ProcessMedianConvolve(src_image: imImage, dst_image: imImage, kernel_size: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessMedianConvolveNew(image: imImage, kernel_size: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup rank */ +int imProcessMedianConvolve(const imImage* src_image, imImage* dst_image, int kernel_size); + +/** Rank convolution using (maximum-minimum) value. \n + * Returns zero if the counter aborted. \n + * Supports all data types except IM_CFLOAT. Can be applied on color images. + * + * \verbatim im.ProcessRangeConvolve(src_image: imImage, dst_image: imImage, kernel_size: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessRangeConvolveNew(image: imImage, kernel_size: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup rank */ +int imProcessRangeConvolve(const imImage* src_image, imImage* dst_image, int kernel_size); + +/** Rank convolution using the closest maximum or minimum value. \n + * Returns zero if the counter aborted. \n + * Supports all data types except IM_CFLOAT. Can be applied on color images. + * + * \verbatim im.ProcessRankClosestConvolve(src_image: imImage, dst_image: imImage, kernel_size: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessRankClosestConvolveNew(image: imImage, kernel_size: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup rank */ +int imProcessRankClosestConvolve(const imImage* src_image, imImage* dst_image, int kernel_size); + +/** Rank convolution using the maximum value. \n + * Returns zero if the counter aborted. \n + * Supports all data types except IM_CFLOAT. Can be applied on color images. + * + * \verbatim im.ProcessRankMaxConvolve(src_image: imImage, dst_image: imImage, kernel_size: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessRankMaxConvolveNew(image: imImage, kernel_size: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup rank */ +int imProcessRankMaxConvolve(const imImage* src_image, imImage* dst_image, int kernel_size); + +/** Rank convolution using the minimum value. \n + * Returns zero if the counter aborted. \n + * Supports all data types except IM_CFLOAT. Can be applied on color images. + * + * \verbatim im.ProcessRankMinConvolve(src_image: imImage, dst_image: imImage, kernel_size: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessRankMinConvolveNew(image: imImage, kernel_size: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup rank */ +int imProcessRankMinConvolve(const imImage* src_image, imImage* dst_image, int kernel_size); + +/** Threshold using a rank convolution with a range contrast function. \n + * Supports all integer IM_GRAY images as source, and IM_BINARY as destiny. \n + * Local variable threshold by the method of Bernsen. \n + * Extracted from XITE, Copyright 1991, Blab, UiO \n + * http://www.ifi.uio.no/~blab/Software/Xite/ +\verbatim + Reference: + Bernsen, J: "Dynamic thresholding of grey-level images" + Proc. of the 8th ICPR, Paris, Oct 1986, 1251-1255. + Author: Oivind Due Trier +\endverbatim + * Returns zero if the counter aborted. + * + * \verbatim im.ProcessRangeContrastThreshold(src_image: imImage, dst_image: imImage, kernel_size: number, min_range: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessRangeContrastThresholdNew(image: imImage, kernel_size: number, min_range: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup threshold */ +int imProcessRangeContrastThreshold(const imImage* src_image, imImage* dst_image, int kernel_size, int min_range); + +/** Threshold using a rank convolution with a local max function. \n + * Returns zero if the counter aborted. \n + * Supports all integer IM_GRAY images as source, and IM_BINARY as destiny. + * + * \verbatim im.ProcessLocalMaxThreshold(src_image: imImage, dst_image: imImage, kernel_size: number, min_level: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessLocalMaxThresholdNew(image: imImage, kernel_size: number, min_level: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup threshold */ +int imProcessLocalMaxThreshold(const imImage* src_image, imImage* dst_image, int kernel_size, int min_level); + + + +/** \defgroup convolve Convolution Operations + * \par + * See \ref im_process_loc.h + * \ingroup process */ + +/** Base Convolution with a kernel. \n + * Kernel can be IM_INT or IM_FLOAT, but always IM_GRAY. Use kernel size odd for better results. \n + * Supports all data types. The border is mirrored. \n + * Returns zero if the counter aborted. Most of the convolutions use this function.\n + * If the kernel image attribute "Description" exists it is used by the counter. + * + * \verbatim im.ProcessConvolve(src_image: imImage, dst_image: imImage, kernel: imImage) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessConvolveNew(image: imImage, kernel: imImage) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup convolve */ +int imProcessConvolve(const imImage* src_image, imImage* dst_image, const imImage* kernel); + +/** Base convolution when the kernel is separable. Only the first line and the first column will be used. \n + * Returns zero if the counter aborted.\n + * If the kernel image attribute "Description" exists it is used by the counter. + * + * \verbatim im.ProcessConvolveSep(src_image: imImage, dst_image: imImage, kernel: imImage) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessConvolveSepNew(image: imImage, kernel: imImage) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup convolve */ +int imProcessConvolveSep(const imImage* src_image, imImage* dst_image, const imImage* kernel); + +/** Base Convolution with two kernels. The result is the magnitude of the result of each convolution. \n + * Kernel can be IM_INT or IM_FLOAT, but always IM_GRAY. Use kernel size odd for better results. \n + * Supports all data types. The border is mirrored. \n + * Returns zero if the counter aborted. Most of the convolutions use this function.\n + * If the kernel image attribute "Description" exists it is used by the counter. + * + * \verbatim im.ProcessConvolveDual(src_image: imImage, dst_image: imImage, kernel1, kernel2: imImage) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessConvolveDualNew(image: imImage, kernel1, kernel2: imImage) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup convolve */ +int imProcessConvolveDual(const imImage* src_image, imImage* dst_image, const imImage *kernel1, const imImage *kernel2); + +/** Repeats the convolution a number of times. \n + * Returns zero if the counter aborted.\n + * If the kernel image attribute "Description" exists it is used by the counter. + * + * \verbatim im.ProcessConvolveRep(src_image: imImage, dst_image: imImage, kernel: imImage, count: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessConvolveRepNew(image: imImage, kernel: imImage, count: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup convolve */ +int imProcessConvolveRep(const imImage* src_image, imImage* dst_image, const imImage* kernel, int count); + +/** Convolve with a kernel rotating it 8 times and getting the absolute maximum value. \n + * Kernel must be square. \n + * The rotation is implemented only for kernel sizes 3x3, 5x5 and 7x7. \n + * Supports all data types except IM_CFLOAT. + * Returns zero if the counter aborted.\n + * If the kernel image attribute "Description" exists it is used by the counter. + * + * \verbatim im.ProcessCompassConvolve(src_image: imImage, dst_image: imImage, kernel: imImage) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessCompassConvolveNew(image: imImage, kernel: imImage) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup convolve */ +int imProcessCompassConvolve(const imImage* src_image, imImage* dst_image, imImage* kernel); + +/** Utility function to rotate a kernel one time. + * + * \verbatim im.ProcessRotateKernel(kernel: imImage) [in Lua 5] \endverbatim + * \ingroup convolve */ +void imProcessRotateKernel(imImage* kernel); + +/** Difference(Gaussian1, Gaussian2). \n + * Supports all data types, + * but if source is IM_BYTE or IM_USHORT destiny image must be of type IM_INT. + * + * \verbatim im.ProcessDiffOfGaussianConvolve(src_image: imImage, dst_image: imImage, stddev1: number, stddev2: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessDiffOfGaussianConvolveNew(image: imImage, stddev1: number, stddev2: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup convolve */ +int imProcessDiffOfGaussianConvolve(const imImage* src_image, imImage* dst_image, float stddev1, float stddev2); + +/** Convolution with a laplacian of a gaussian kernel. \n + * Supports all data types, + * but if source is IM_BYTE or IM_USHORT destiny image must be of type IM_INT. + * + * \verbatim im.ProcessLapOfGaussianConvolve(src_image: imImage, dst_image: imImage, stddev: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessLapOfGaussianConvolveNew(image: imImage, stddev: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup convolve */ +int imProcessLapOfGaussianConvolve(const imImage* src_image, imImage* dst_image, float stddev); + +/** Convolution with a kernel full of "1"s inside a circle. \n + * Supports all data types. + * + * \verbatim im.ProcessMeanConvolve(src_image: imImage, dst_image: imImage, kernel_size: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessMeanConvolveNew(image: imImage, kernel_size: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup convolve */ +int imProcessMeanConvolve(const imImage* src_image, imImage* dst_image, int kernel_size); + +/** Convolution with a float gaussian kernel. \n + * If sdtdev is negative its magnitude will be used as the kernel size. \n + * Supports all data types. + * + * \verbatim im.ProcessGaussianConvolve(src_image: imImage, dst_image: imImage, stddev: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessGaussianConvolveNew(image: imImage, stddev: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup convolve */ +int imProcessGaussianConvolve(const imImage* src_image, imImage* dst_image, float stddev); + +/** Convolution with a barlett kernel. \n + * Supports all data types. + * + * \verbatim im.ProcessBarlettConvolve(src_image: imImage, dst_image: imImage, kernel_size: number) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessBarlettConvolveNew(image: imImage, kernel_size: number) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup convolve */ +int imProcessBarlettConvolve(const imImage* src_image, imImage* dst_image, int kernel_size); + +/** Magnitude of the sobel convolution. \n + * Supports all data types. + * + * \verbatim im.ProcessSobelConvolve(src_image: imImage, dst_image: imImage) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessSobelConvolveNew(image: imImage) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup convolve */ +int imProcessSobelConvolve(const imImage* src_image, imImage* dst_image); + +/** Magnitude of the prewitt convolution. \n + * Supports all data types. + * + * \verbatim im.ProcessPrewittConvolve(src_image: imImage, dst_image: imImage) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessPrewittConvolveNew(image: imImage) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup convolve */ +int imProcessPrewittConvolve(const imImage* src_image, imImage* dst_image); + +/** Spline edge dectection. \n + * Supports all data types. + * + * \verbatim im.ProcessSplineEdgeConvolve(src_image: imImage, dst_image: imImage) -> counter: boolean [in Lua 5] \endverbatim + * \verbatim im.ProcessSplineEdgeConvolveNew(image: imImage) -> counter: boolean, new_image: imImage [in Lua 5] \endverbatim + * \ingroup convolve */ +int imProcessSplineEdgeConvolve(const imImage* src_image, imImage* dst_image); + +/** Finds the zero crossings of IM_INT and IM_FLOAT images. Crossings are marked with non zero values + * indicating the intensity of the edge. It is usually used after a second derivative, laplace. \n + * Extracted from XITE, Copyright 1991, Blab, UiO \n + * http://www.ifi.uio.no/~blab/Software/Xite/ + * + * \verbatim im.ProcessZeroCrossing(src_image: imImage, dst_image: imImage) [in Lua 5] \endverbatim + * \verbatim im.ProcessZeroCrossingNew(image: imImage) -> new_image: imImage [in Lua 5] \endverbatim + * \ingroup convolve */ +void imProcessZeroCrossing(const imImage* src_image, imImage* dst_image); + +/** First part of the Canny edge detector. Includes the gaussian filtering and the nonmax suppression. \n + * After using this you could apply a Hysteresis Threshold, see \ref imProcessHysteresisThreshold. \n + * Image must be IM_BYTE/IM_GRAY. \n + * Implementation from the book: + \verbatim + J. R. Parker + "Algoritms for Image Processing and Computer Vision" + WILEY + \endverbatim + * + * \verbatim im.ProcessCanny(src_image: imImage, dst_image: imImage, stddev: number) [in Lua 5] \endverbatim + * \verbatim im.ProcessCannyNew(image: imImage, stddev: number) -> new_image: imImage [in Lua 5] \endverbatim + * \ingroup convolve */ +void imProcessCanny(const imImage* src_image, imImage* dst_image, float stddev); + +/** Calculates the kernel size given the standard deviation. \n + * If sdtdev is negative its magnitude will be used as the kernel size. + * + * \verbatim im.GaussianStdDev2KernelSize(stddev: number) -> kernel_size: number [in Lua 5] \endverbatim + * \ingroup convolve */ +int imGaussianStdDev2KernelSize(float stddev); + +/** Calculates the standard deviation given the kernel size. + * + * \verbatim im.GaussianKernelSize2StdDev(kernel_size: number) -> stddev: number [in Lua 5] \endverbatim + * \ingroup convolve */ +float imGaussianKernelSize2StdDev(int kernel_size); + + +#if defined(__cplusplus) +} +#endif + +#endif |