cv2.error: opencv(4.3.0) /io/opencv/modules/imgproc/src/drawing.cpp:2374: error: (-215:assertion failed) p.checkvector(2, cv_32s) >= 0 in function 'fillpoly'

By Double Wooden Hammer Bernice Konopelski at May 25 2021

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cv2.error: opencv(4.3.0) /io/opencv/modules/imgproc/src/drawing.cpp:2374: error: (-215:assertion failed) p.checkvector(2, cv_32s) >= 0 in function 'fillpoly'

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