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- Orientation of contours or polygons treated as point clouds.
orientation_xldOrientationXldorientation_xldOrientationXldorientation_xld- 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).