OpenCV Python find contour point closest to a given point -


in opencv, given point (x,y), best way find point closest belongs known contour cnt? (i assume point lies outside contour.)

dist = cv2.pointpolygontest(cnt,(x,y),true)

pointpolygontest returns distance of closest contour point not see way actual point.

of course, loop on list of contour points , recalculate distance finding 1 minimum distance. (a couple of questions on explain more sophisticated ways finding closest point out of list of points given point.)

alternatively, draw circle radius dist , see circle , contour touch.

both options seem little clunky, wonder if missing more straight forward.


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