gen_cooc_matrixgen_cooc_matrixGenCoocMatrixGenCoocMatrixgen_cooc_matrix (算子名称)

名称

gen_cooc_matrixgen_cooc_matrixGenCoocMatrixGenCoocMatrixgen_cooc_matrix — Calculate the co-occurrence matrix of a region in an image.

参数签名

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

描述

The operator 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 区域区域区域区域区域区域 and ignores any previously set domain of the input image ImageImageImageImageimageimage.

运行信息

Multithreading type: reentrant (runs in parallel with non-exclusive operators).
Multithreading scope: global (may be called from any thread).
Automatically parallelized on tuple level.

参数表

区域区域区域区域区域区域 (input_object) region(-array) → object

Region to be checked.

ImageImageImageImageimageimage (input_object) singlechannelimage → object (byte)

Image providing the gray values.

MatrixMatrixMatrixMatrixmatrixmatrix (output_object) image(-array) → object (real)

Co-occurrence matrix (matrices).

LdGrayLdGrayLdGrayLdGrayldGrayld_gray (input_control) integer → (integer)

Number of gray values to be distinguished ().

Default: 6

List of values: 1, 2, 3, 4, 5, 6, 7, 8

Value range: LdGray LdGray LdGray LdGray ldGray ld_gray (lin)

Minimum increment: 1

Recommended increment: 1

DirectionDirectionDirectionDirectiondirectiondirection (input_control) integer → (integer)

Direction of neighbor relation.

Default: 0

List of values: 0, 45, 90, 135

结果

The operator gen_cooc_matrixgen_cooc_matrixGenCoocMatrixGenCoocMatrixGenCoocMatrixgen_cooc_matrix returns the value 2 ( H_MSG_TRUE) if an image with defined gray values is entered and the parameters are correct. The behavior in case of empty input (no input images available) is set via the operator 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>). If necessary an exception is raised.

可能的前置算子

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

可替代算子

cooc_feature_imagecooc_feature_imageCoocFeatureImageCoocFeatureImageCoocFeatureImagecooc_feature_image

参考其它

cooc_feature_matrixcooc_feature_matrixCoocFeatureMatrixCoocFeatureMatrixCoocFeatureMatrixcooc_feature_matrix

模块

Foundation

算子列表