opencv的基础图片的读取cv2.imshow()图片的颜色转换颜色转换二值化自适应二值化cv2.cvtColor(img,cv2.COLOR_RGB2BGR) _,threshold_img=cv2.threshold(img,150,255,cv.THRESH_BINARY) cv2.adaptiveThreshold(gray,255,cv2.ADAPTIVE_THRESH_GAUSSIA
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