Features

List of Operators

area_center_points_xldAreaCenterPointsXldarea_center_points_xldAreaCenterPointsXldarea_center_points_xld

Area and center of gravity (centroid) of contours and polygons treated as point clouds.

area_center_xldAreaCenterXldarea_center_xldAreaCenterXldarea_center_xld

Area and center of gravity (centroid) of contours and polygons.

circularity_xldCircularityXldcircularity_xldCircularityXldcircularity_xld

Shape factor for the circularity (similarity to a circle) of contours or polygons.

compactness_xldCompactnessXldcompactness_xldCompactnessXldcompactness_xld

Shape factor for the compactness of contours or polygons.

contour_point_num_xldContourPointNumXldcontour_point_num_xldContourPointNumXldcontour_point_num_xld

Return the number of points in an XLD contour.

convexity_xldConvexityXldconvexity_xldConvexityXldconvexity_xld

Shape factor for the convexity of contours or polygons.

diameter_xldDiameterXlddiameter_xldDiameterXlddiameter_xld

Maximum distance between two contour or polygon points.

dist_ellipse_contour_points_xldDistEllipseContourPointsXlddist_ellipse_contour_points_xldDistEllipseContourPointsXlddist_ellipse_contour_points_xld

Compute the distances of all contour points to an ellipse.

dist_ellipse_contour_xldDistEllipseContourXlddist_ellipse_contour_xldDistEllipseContourXlddist_ellipse_contour_xld

Compute the distance of contours to an ellipse.

dist_rectangle2_contour_points_xldDistRectangle2ContourPointsXlddist_rectangle2_contour_points_xldDistRectangle2ContourPointsXlddist_rectangle2_contour_points_xld

Compute the distances of all contour points to a rectangle.

eccentricity_points_xldEccentricityPointsXldeccentricity_points_xldEccentricityPointsXldeccentricity_points_xld

Anisometry of contours or polygons treated as point clouds.

eccentricity_xldEccentricityXldeccentricity_xldEccentricityXldeccentricity_xld

Shape features derived from the ellipse parameters of contours or polygons.

elliptic_axis_points_xldEllipticAxisPointsXldelliptic_axis_points_xldEllipticAxisPointsXldelliptic_axis_points_xld

Parameters of the equivalent ellipse of contours or polygons treated as point clouds.

elliptic_axis_xldEllipticAxisXldelliptic_axis_xldEllipticAxisXldelliptic_axis_xld

Parameters of the equivalent ellipse of contours or polygons.

fit_circle_contour_xldFitCircleContourXldfit_circle_contour_xldFitCircleContourXldfit_circle_contour_xld

Approximate XLD contours by circles.

fit_ellipse_contour_xldFitEllipseContourXldfit_ellipse_contour_xldFitEllipseContourXldfit_ellipse_contour_xld

Approximate XLD contours by ellipses or elliptic arcs.

fit_line_contour_xldFitLineContourXldfit_line_contour_xldFitLineContourXldfit_line_contour_xld

Approximate XLD contours by line segments.

fit_rectangle2_contour_xldFitRectangle2ContourXldfit_rectangle2_contour_xldFitRectangle2ContourXldfit_rectangle2_contour_xld

Fit rectangles to XLD contours.

get_contour_angle_xldGetContourAngleXldget_contour_angle_xldGetContourAngleXldget_contour_angle_xld

Calculate the direction of an XLD contour for each contour point.

get_contour_attrib_xldGetContourAttribXldget_contour_attrib_xldGetContourAttribXldget_contour_attrib_xld

Return point attribute values of an XLD contour.

get_contour_global_attrib_xldGetContourGlobalAttribXldget_contour_global_attrib_xldGetContourGlobalAttribXldget_contour_global_attrib_xld

Return global attributes values of an XLD contour.

get_regress_params_xldGetRegressParamsXldget_regress_params_xldGetRegressParamsXldget_regress_params_xld

Return XLD contour parameters.

height_width_ratio_xldHeightWidthRatioXldheight_width_ratio_xldHeightWidthRatioXldheight_width_ratio_xld

Compute the width, height, and aspect ratio of the enclosing rectangle parallel to the coordinate axes of contours or polygons.

info_parallels_xldInfoParallelsXldinfo_parallels_xldInfoParallelsXldinfo_parallels_xld

Return information about the gray values of the area enclosed by XLD parallels.

length_xldLengthXldlength_xldLengthXldlength_xld

Length of contours or polygons.

local_max_contours_xldLocalMaxContoursXldlocal_max_contours_xldLocalMaxContoursXldlocal_max_contours_xld

Select XLD contours with a local maximum of gray values.

max_parallels_xldMaxParallelsXldmax_parallels_xldMaxParallelsXldmax_parallels_xld

Join modified XLD parallels lying on the same polygon.

moments_any_points_xldMomentsAnyPointsXldmoments_any_points_xldMomentsAnyPointsXldmoments_any_points_xld

Arbitrary geometric moments of contours or polygons treated as point clouds.

moments_any_xldMomentsAnyXldmoments_any_xldMomentsAnyXldmoments_any_xld

Arbitrary geometric moments of contours or polygons.

moments_points_xldMomentsPointsXldmoments_points_xldMomentsPointsXldmoments_points_xld

Geometric moments M20, M02, and M11 of contours or polygons treated as point clouds.

moments_xldMomentsXldmoments_xldMomentsXldmoments_xld

Geometric moments M20, M02, and M11 of contours or polygons.

orientation_points_xldOrientationPointsXldorientation_points_xldOrientationPointsXldorientation_points_xld

Calculate the orientation of contours or polygons treated as point clouds.

orientation_xldOrientationXldorientation_xldOrientationXldorientation_xld

Calculate the orientation of contours or polygons.

query_contour_attribs_xldQueryContourAttribsXldquery_contour_attribs_xldQueryContourAttribsXldquery_contour_attribs_xld

Return the names of the defined attributes of an XLD contour.

query_contour_global_attribs_xldQueryContourGlobalAttribsXldquery_contour_global_attribs_xldQueryContourGlobalAttribsXldquery_contour_global_attribs_xld

Return the names of the defined global attributes of an XLD contour.

rectangularity_xldRectangularityXldrectangularity_xldRectangularityXldrectangularity_xld

Shape factor for the rectangularity of contours or polygons.

select_contours_xldSelectContoursXldselect_contours_xldSelectContoursXldselect_contours_xld

Select XLD contours according to several features.

select_shape_xldSelectShapeXldselect_shape_xldSelectShapeXldselect_shape_xld

Select contours or polygons using shape features.

select_xld_pointSelectXldPointselect_xld_pointSelectXldPointselect_xld_point

Choose all contours or polygons containing a given point.

smallest_circle_xldSmallestCircleXldsmallest_circle_xldSmallestCircleXldsmallest_circle_xld

Smallest enclosing circle of contours or polygons.

smallest_rectangle1_xldSmallestRectangle1Xldsmallest_rectangle1_xldSmallestRectangle1Xldsmallest_rectangle1_xld

Enclosing rectangle parallel to the coordinate axes of contours or polygons.

smallest_rectangle2_xldSmallestRectangle2Xldsmallest_rectangle2_xldSmallestRectangle2Xldsmallest_rectangle2_xld

Smallest enclosing rectangle with arbitrary orientation of contours or polygons.

test_closed_xldTestClosedXldtest_closed_xldTestClosedXldtest_closed_xld

Test whether contours or polygons are closed.

test_self_intersection_xldTestSelfIntersectionXldtest_self_intersection_xldTestSelfIntersectionXldtest_self_intersection_xld

Test XLD contours or polygons for self intersection.

test_xld_pointTestXldPointtest_xld_pointTestXldPointtest_xld_point

Test whether one or more contours or polygons enclose the given point(s).