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# coding=utf-8 import numpy as np import cv2 image = cv2.imread("d:/bgs.jpg") b = np.array([[[100,100], [250,100], [300,220],[100,230]]], dtype = np.int32) im = np.zeros(image.shape[:2], dtype = "uint8") cv2.polylines(im, b, 1, 255) cv2.fillPoly(im, b, 255) mask = im cv2.imshow("Mask", mask) masked = cv2.bitwise_and(image, image, mask=mask) cv2.imshow("Mask to Image", masked) cv2.waitKey(0)
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