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OpenCV-Python-Tutorial/ch09-图像的基础操作/9.split_color.py
b,g,r=cv2.split(img)#比较耗时的操作,请使用numpy 索引 img=cv2.merge(b,g,r)
改为(缺少一对括号)
b,g,r=cv2.split(img)#比较耗时的操作,请使用numpy 索引 img=cv2.merge((b,g,r))