gen_cooc_matrixgen_cooc_matrixGenCoocMatrixGenCoocMatrixgen_cooc_matrix (算子)

名称

gen_cooc_matrixgen_cooc_matrixGenCoocMatrixGenCoocMatrixgen_cooc_matrix — 计算图像中某个区域的共生矩阵。

签名

gen_cooc_matrix(Regions, Image : Matrix : LdGray, Direction : )

描述

算子 gen_cooc_matrixgen_cooc_matrixGenCoocMatrixGenCoocMatrixGenCoocMatrixgen_cooc_matrix determines from the input regions how often the gray values i and j are located next to each other in a certain direction (0, 45, 90, 135 degrees), stores this number in the co-occurrence matrix at the locations (i,j) and (j,i) (the matrix is symmetrical), and finally scales the matrix with the number of entries. LdGrayLdGrayLdGrayLdGrayldGrayld_gray indicates the number of gray values to be distinguished (namely ).

Example: Input image with gray values (scaled with LdGrayLdGrayLdGrayLdGrayldGrayld_gray=2)

Co-occurrence matrix (not scaled):

注意

Note that the operator gen_cooc_matrixgen_cooc_matrixGenCoocMatrixGenCoocMatrixGenCoocMatrixgen_cooc_matrix only considers the given RegionsRegionsRegionsRegionsregionsregions and ignores any previously set domain of the input image ImageImageImageImageimageimage。

执行信息

多线程类型：可重入（与非独占算子并行运行）。
多线程作用域：全局（可从任何线程调用）。
在元组级别上自动并行化。

参数

RegionsRegionsRegionsRegionsregionsregions (输入对象) region(-array) → object

Region to be checked.

ImageImageImageImageimageimage (输入对象) singlechannelimage → object (byte)

Image providing the gray values.

MatrixMatrixMatrixMatrixmatrixmatrix (输出对象) image(-array) → object (real)

Co-occurrence matrix (matrices).

LdGrayLdGrayLdGrayLdGrayldGrayld_gray (输入控制) integer → (integer)

Number of gray values to be distinguished ().

默认值： 6

值列表： 1, 2, 3, 4, 5, 6, 7, 8

值范围： LdGray LdGray LdGray LdGray ldGray ld_gray (lin)

最小增量： 1

建议增量： 1

DirectionDirectionDirectionDirectiondirectiondirection (输入控制) integer → (integer)

Direction of neighbor relation.

默认值： 0

值列表： 0, 45, 90, 135

结果

算子 gen_cooc_matrixgen_cooc_matrixGenCoocMatrixGenCoocMatrixGenCoocMatrixgen_cooc_matrix 返回值 2 ( H_MSG_TRUE) if an image with defined gray values is entered and the parameters are correct.当输入为空（无可用输入图像）时可设置行为通过算子 set_system(::'no_object_result',<Result>:)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>)set_system("no_object_result",<Result>), the behavior in case of empty region is set via set_system(::'empty_region_result',<Result>:)set_system("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>)SetSystem("empty_region_result",<Result>)set_system("empty_region_result",<Result>)。如有必要，则抛出异常。

可能的前趋

draw_regiondraw_regionDrawRegionDrawRegionDrawRegiondraw_region, gen_circlegen_circleGenCircleGenCircleGenCirclegen_circle, gen_ellipsegen_ellipseGenEllipseGenEllipseGenEllipsegen_ellipse, gen_rectangle1gen_rectangle1GenRectangle1GenRectangle1GenRectangle1gen_rectangle1, gen_rectangle2gen_rectangle2GenRectangle2GenRectangle2GenRectangle2gen_rectangle2, thresholdthresholdThresholdThresholdThresholdthreshold, erosion_circleerosion_circleErosionCircleErosionCircleErosionCircleerosion_circle, binomial_filterbinomial_filterBinomialFilterBinomialFilterBinomialFilterbinomial_filter, gauss_filtergauss_filterGaussFilterGaussFilterGaussFiltergauss_filter, smooth_imagesmooth_imageSmoothImageSmoothImageSmoothImagesmooth_image, sub_imagesub_imageSubImageSubImageSubImagesub_image

替代

cooc_feature_imagecooc_feature_imageCoocFeatureImageCoocFeatureImageCoocFeatureImagecooc_feature_image

另见

cooc_feature_matrixcooc_feature_matrixCoocFeatureMatrixCoocFeatureMatrixCoocFeatureMatrixcooc_feature_matrix

模块

基础

算子