OpenCV对一张图片填充一个多边形 fillPoly
OpenCV对一张图片填充一个多边形 fillPoly 可视化一张图像,Python对内存numpy变量进行可视化
roiMask01Assis = cv.fillPoly(roiMask01Assis, line, color)
对一张图像进行可视化
cv.imshow("window_name", somaBackground), cv.waitKey(0)
points(list)和lines(array)是什么玩意
points = value['polygon']
line = np.array([points], dtype=np.int32)
roiMask01Assis = np.zeros((self.imgsize[1], self.imgsize[0], 3), np.uint8)
cv.fillConvexPoly(roiMask01Assis, line, (255, 255, 255))
cv.imshow("window_name", roiMask01Assis), cv.waitKey(0)
结果如下图所示:
来一个二值图像:
roiMask01 = np.zeros((self.imgsize[1], self.imgsize[0]), np.uint8)
cv.fillConvexPoly(roiMask01, line, (255, 255))
cv.imshow("window_name", roiMask01), cv.waitKey(0)