Name
cooc_feature_matrixcooc_feature_matrixCoocFeatureMatrixcooc_feature_matrixCoocFeatureMatrixCoocFeatureMatrix — Calculate gray value features from a co-occurrence matrix.
The operator calculates from a co-occurence matrix
(CoocMatrixCoocMatrixCoocMatrixCoocMatrixCoocMatrixcoocMatrix) the energy (EnergyEnergyEnergyEnergyEnergyenergy), correlation
(CorrelationCorrelationCorrelationCorrelationCorrelationcorrelation), local homogeneity (HomogeneityHomogeneityHomogeneityHomogeneityHomogeneityhomogeneity)
and contrast (ContrastContrastContrastContrastContrastcontrast).
The operator cooc_feature_matrixcooc_feature_matrixCoocFeatureMatrixcooc_feature_matrixCoocFeatureMatrixCoocFeatureMatrix calculates the gray value
features from the part of the input matrix generated by
gen_cooc_matrixgen_cooc_matrixGenCoocMatrixgen_cooc_matrixGenCoocMatrixGenCoocMatrix corresponding to the direction matrix
indicated by the parameters LdGray and Direction according to
the following formulae:
Energy:
Correlation:
Local homogeneity:
Contrast:
where
The region of the input image is disregarded.
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Automatically parallelized on tuple level.
Homogeneity of the gray values.
Correlation of gray values.
Local homogeneity of gray values.
The operator cooc_feature_matrixcooc_feature_matrixCoocFeatureMatrixcooc_feature_matrixCoocFeatureMatrixCoocFeatureMatrix returns the value 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 the operator
set_system(::'no_object_result',<Result>:)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>).
If necessary an exception is raised.
gen_cooc_matrixgen_cooc_matrixGenCoocMatrixgen_cooc_matrixGenCoocMatrixGenCoocMatrix
cooc_feature_imagecooc_feature_imageCoocFeatureImagecooc_feature_imageCoocFeatureImageCoocFeatureImage
intensityintensityIntensityintensityIntensityIntensity,
min_max_graymin_max_grayMinMaxGraymin_max_grayMinMaxGrayMinMaxGray,
entropy_grayentropy_grayEntropyGrayentropy_grayEntropyGrayEntropyGray,
select_grayselect_graySelectGrayselect_graySelectGraySelectGray
Foundation