0000image polygon crop in opencv - smart1004/doc GitHub Wiki image polygon crop in opencv ***~~ https://stackoverflow.com/questions/48301186/cropping-concave-polygon-from-image-using-opencv-python?rq=1 https://m.blog.naver.com/PostView.nhn?blogId=samsjang&logNo=220517391218&proxyReferer=http%3A%2F%2Fwww.google.co.kr%2Furl%3Fsa%3Dt%26rct%3Dj%26q%3D%26esrc%3Ds%26source%3Dweb%26cd%3D5%26ved%3D2ahUKEwiVya_Oq4bfAhXZ62EKHVi8CSoQFjAEegQIBhAB%26url%3Dhttp%253A%252F%252Fm.blog.naver.com%252Fsamsjang%252F220517391218%26usg%3DAOvVaw3JMIU5zEb1jvBaRcFTz_9h https://stackoverflow.com/questions/15341538/numpy-opencv-2-how-do-i-crop-non-rectangular-region