概述
contours,hierarchy = cv2.findContours(copy.deepcopy(img_copy),cv2.RETR_TREE,cv2.CHAIN_APPROX_SIMPLE) areas = [cv2.contourArea(c) for c in contours] max_index = np.argmax(areas) cnt=contours[max_index] # how to fill of black the outside of the contours cnt please? `
import cv2
import numpy
img = cv2.imread("zebra.jpg")
stencil = numpy.zeros(img.shape).astype(img.dtype)
contours = [numpy.array([[100,180],[200,280],180]]),numpy.array([[280,70],[12,20],[80,150]])]
color = [255,255,255]
cv2.fillPoly(stencil,contours,color)
result = cv2.bitwise_and(img,stencil)
cv2.imwrite("result.jpg",result)总结
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