cooc_feature_matrixcooc_feature_matrixCoocFeatureMatrixCoocFeatureMatrixcooc_feature_matrix (算子名称)

名称

cooc_feature_matrixcooc_feature_matrixCoocFeatureMatrixCoocFeatureMatrixcooc_feature_matrix — Calculate gray value features from a co-occurrence matrix.

参数签名

描述

该算子 cooc_feature_matrixcooc_feature_matrixCoocFeatureMatrixCoocFeatureMatrixCoocFeatureMatrixcooc_feature_matrix calculates from a co-occurrence matrix (CoocMatrixCoocMatrixCoocMatrixCoocMatrixcoocMatrixcooc_matrix) the energy (EnergyEnergyEnergyEnergyenergyenergy), correlation (CorrelationCorrelationCorrelationCorrelationcorrelationcorrelation), local homogeneity (HomogeneityHomogeneityHomogeneityHomogeneityhomogeneityhomogeneity) and contrast (ContrastContrastContrastContrastcontrastcontrast).

该算子 cooc_feature_matrixcooc_feature_matrixCoocFeatureMatrixCoocFeatureMatrixCoocFeatureMatrixcooc_feature_matrix calculates the gray value features from the part of the input matrix generated by gen_cooc_matrixgen_cooc_matrixGenCoocMatrixGenCoocMatrixGenCoocMatrixgen_cooc_matrix corresponding to the direction matrix indicated by the parameters LdGrayLdGrayLdGrayLdGrayldGrayld_gray and DirectionDirectionDirectionDirectiondirectiondirection according to the following formulae:

• Energy (Measure for image homogeneity):

• Correlation (Measure for gray value dependencies):

• Local homogeneity:

• Contrast (Measure for the size of the intensity differences):

where

Width of CoocMatrixCoocMatrixCoocMatrixCoocMatrixcoocMatrixcooc_matrix,

Entry of co-occurrence matrix,

,

,

,

.

注意

The region of the input image is disregarded.

运行信息

• 多线程类型:可重入(与非独占操作符并行运行)。
• 多线程作用域:全局(可以从任何线程调用)。
• 在元组级别自动并行化。

参数表

结果

该算子 cooc_feature_matrixcooc_feature_matrixCoocFeatureMatrixCoocFeatureMatrixCoocFeatureMatrixcooc_feature_matrix 返回值 2 ( H_MSG_TRUE) if an image with defined gray values is passed and the parameters are correct. The behavior in case of empty input (no input images available) is set via 该算子 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>). If necessary an exception is raised.

可能的前置算子

gen_cooc_matrixgen_cooc_matrixGenCoocMatrixGenCoocMatrixGenCoocMatrixgen_cooc_matrix

可替代算子

cooc_feature_imagecooc_feature_imageCoocFeatureImageCoocFeatureImageCoocFeatureImagecooc_feature_image

参考其它

intensityintensityIntensityIntensityIntensityintensity, min_max_graymin_max_grayMinMaxGrayMinMaxGrayMinMaxGraymin_max_gray, entropy_grayentropy_grayEntropyGrayEntropyGrayEntropyGrayentropy_gray, select_grayselect_graySelectGraySelectGraySelectGrayselect_gray

模块

Foundation

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