Features

area_centerAreaCenterAreaCenterarea_centerAreaCenterarea_center

Area and center of regions.

area_holesAreaHolesAreaHolesarea_holesAreaHolesarea_holes

Compute the area of holes of regions.

circularityCircularityCircularitycircularityCircularitycircularity

Shape factor for the circularity (similarity to a circle) of a region.

compactnessCompactnessCompactnesscompactnessCompactnesscompactness

Shape factor for the compactness of a region.

connect_and_holesConnectAndHolesConnectAndHolesconnect_and_holesConnectAndHolesconnect_and_holes

Number of connection components and holes

contlengthContlengthContlengthcontlengthContlengthcontlength

Contour length of a region.

convexityConvexityConvexityconvexityConvexityconvexity

Shape factor for the convexity of a region.

diameter_regionDiameterRegionDiameterRegiondiameter_regionDiameterRegiondiameter_region

Maximal distance between two boundary points of a region.

eccentricityEccentricityEccentricityeccentricityEccentricityeccentricity

Shape features derived from the ellipse parameters.

elliptic_axisEllipticAxisEllipticAxiselliptic_axisEllipticAxiselliptic_axis

Parameters of the equivalent ellipse.

euler_numberEulerNumberEulerNumbereuler_numberEulerNumbereuler_number

Calculate the Euler number.

find_neighborsFindNeighborsFindNeighborsfind_neighborsFindNeighborsfind_neighbors

Search direct neighbors.

get_region_indexGetRegionIndexGetRegionIndexget_region_indexGetRegionIndexget_region_index

Index of all regions containing a given pixel.

get_region_thicknessGetRegionThicknessGetRegionThicknessget_region_thicknessGetRegionThicknessget_region_thickness

Access the thickness of a region along the main axis.

hamming_distanceHammingDistanceHammingDistancehamming_distanceHammingDistancehamming_distance

Hamming distance between two regions.

hamming_distance_normHammingDistanceNormHammingDistanceNormhamming_distance_normHammingDistanceNormhamming_distance_norm

Hamming distance between two regions using normalization.

inner_circleInnerCircleInnerCircleinner_circleInnerCircleinner_circle

Largest inner circle of a region.

inner_rectangle1InnerRectangle1InnerRectangle1inner_rectangle1InnerRectangle1inner_rectangle1

Largest inner rectangle of a region.

moments_region_2ndMomentsRegion2ndMomentsRegion2ndmoments_region_2ndMomentsRegion2ndmoments_region_2nd

Calculate the geometric moments of regions.

moments_region_2nd_invarMomentsRegion2ndInvarMomentsRegion2ndInvarmoments_region_2nd_invarMomentsRegion2ndInvarmoments_region_2nd_invar

Geometric moments of regions.

moments_region_2nd_rel_invarMomentsRegion2ndRelInvarMomentsRegion2ndRelInvarmoments_region_2nd_rel_invarMomentsRegion2ndRelInvarmoments_region_2nd_rel_invar

Geometric moments of regions.

moments_region_3rdMomentsRegion3rdMomentsRegion3rdmoments_region_3rdMomentsRegion3rdmoments_region_3rd

Geometric moments of regions.

moments_region_3rd_invarMomentsRegion3rdInvarMomentsRegion3rdInvarmoments_region_3rd_invarMomentsRegion3rdInvarmoments_region_3rd_invar

Geometric moments of regions.

moments_region_centralMomentsRegionCentralMomentsRegionCentralmoments_region_centralMomentsRegionCentralmoments_region_central

Geometric moments of regions.

moments_region_central_invarMomentsRegionCentralInvarMomentsRegionCentralInvarmoments_region_central_invarMomentsRegionCentralInvarmoments_region_central_invar

Geometric moments of regions.

orientation_regionOrientationRegionOrientationRegionorientation_regionOrientationRegionorientation_region

Orientation of a region.

rectangularityRectangularityRectangularityrectangularityRectangularityrectangularity

Shape factor for the rectangularity of a region.

region_featuresRegionFeaturesRegionFeaturesregion_featuresRegionFeaturesregion_features

Calculate shape features of regions.

roundnessRoundnessRoundnessroundnessRoundnessroundness

Shape factors from contour.

runlength_distributionRunlengthDistributionRunlengthDistributionrunlength_distributionRunlengthDistributionrunlength_distribution

Distribution of runs needed for runlength encoding of a region.

runlength_featuresRunlengthFeaturesRunlengthFeaturesrunlength_featuresRunlengthFeaturesrunlength_features

Characteristic values for runlength coding of regions.

select_region_pointSelectRegionPointSelectRegionPointselect_region_pointSelectRegionPointselect_region_point

Choose all regions containing a given pixel.

select_region_spatialSelectRegionSpatialSelectRegionSpatialselect_region_spatialSelectRegionSpatialselect_region_spatial

Pose relation of regions.

select_shapeSelectShapeSelectShapeselect_shapeSelectShapeselect_shape

Choose regions with the aid of shape features.

select_shape_protoSelectShapeProtoSelectShapeProtoselect_shape_protoSelectShapeProtoselect_shape_proto

Choose regions having a certain relation to each other.

select_shape_stdSelectShapeStdSelectShapeStdselect_shape_stdSelectShapeStdselect_shape_std

Select regions of a given shape.

smallest_circleSmallestCircleSmallestCirclesmallest_circleSmallestCirclesmallest_circle

Smallest surrounding circle of a region.

smallest_rectangle1SmallestRectangle1SmallestRectangle1smallest_rectangle1SmallestRectangle1smallest_rectangle1

Surrounding rectangle parallel to the coordinate axes.

smallest_rectangle2SmallestRectangle2SmallestRectangle2smallest_rectangle2SmallestRectangle2smallest_rectangle2

Smallest surrounding rectangle with any orientation.

spatial_relationSpatialRelationSpatialRelationspatial_relationSpatialRelationspatial_relation

Pose relation of regions with regard to the coordinate axes.