Features

List of Operators

area_center_grayAreaCenterGrayAreaCenterGrayarea_center_gray
Compute the area and center of gravity of a region in a gray value image.
cooc_feature_imageCoocFeatureImageCoocFeatureImagecooc_feature_image
Calculate a co-occurrence matrix and derive gray value features thereof.
cooc_feature_matrixCoocFeatureMatrixCoocFeatureMatrixcooc_feature_matrix
Calculate gray value features from a co-occurrence matrix.
elliptic_axis_grayEllipticAxisGrayEllipticAxisGrayelliptic_axis_gray
Compute the orientation and major axes of a region in a gray value image.
entropy_grayEntropyGrayEntropyGrayentropy_gray
Determine the entropy and anisotropy of images.
estimate_noiseEstimateNoiseEstimateNoiseestimate_noise
Estimate the image noise from a single image.
fit_surface_first_orderFitSurfaceFirstOrderFitSurfaceFirstOrderfit_surface_first_order
Calculate gray value moments and approximation by a first order surface (plane).
fit_surface_second_orderFitSurfaceSecondOrderFitSurfaceSecondOrderfit_surface_second_order
Calculate gray value moments and approximation by a second order surface.
fuzzy_entropyFuzzyEntropyFuzzyEntropyfuzzy_entropy
Determine the fuzzy entropy of regions.
fuzzy_perimeterFuzzyPerimeterFuzzyPerimeterfuzzy_perimeter
Calculate the fuzzy perimeter of a region.
gen_cooc_matrixGenCoocMatrixGenCoocMatrixgen_cooc_matrix
Calculate the co-occurrence matrix of a region in an image.
gray_featuresGrayFeaturesGrayFeaturesgray_features
Calculates gray value features for a set of regions.
gray_histoGrayHistoGrayHistogray_histo
Calculate the gray value distribution.
gray_histo_absGrayHistoAbsGrayHistoAbsgray_histo_abs
Calculate the gray value distribution.
gray_histo_rangeGrayHistoRangeGrayHistoRangegray_histo_range
Calculate the gray value distribution of a single channel image within a certain gray value range.
gray_projectionsGrayProjectionsGrayProjectionsgray_projections
Calculate horizontal and vertical gray-value projections.
histo_2dimHisto2dimHisto2dimhisto_2dim
Calculate the histogram of two-channel gray value images.
intensityIntensityIntensityintensity
Calculate the mean and deviation of gray values.
min_max_grayMinMaxGrayMinMaxGraymin_max_gray
Determine the minimum and maximum gray values within regions.
moments_gray_planeMomentsGrayPlaneMomentsGrayPlanemoments_gray_plane
Calculate gray value moments and approximation by a plane.
plane_deviationPlaneDeviationPlaneDeviationplane_deviation
Calculate the deviation of the gray values from the approximating image plane.
select_graySelectGraySelectGrayselect_gray
Select regions based on gray value features.
shape_histo_allShapeHistoAllShapeHistoAllshape_histo_all
Determine a histogram of features along all threshold values.
shape_histo_pointShapeHistoPointShapeHistoPointshape_histo_point
Determine a histogram of features along all threshold values.