digital_display_ocr.py 文件源码

def cnvt_edged_image(img_arr, should_save=False):
  # ratio = img_arr.shape[0] / 300.0
  image = imutils.resize(img_arr,height=300)
  gray_image = cv2.bilateralFilter(cv2.cvtColor(image, cv2.COLOR_BGR2GRAY),11, 17, 17)
  edged_image = cv2.Canny(gray_image, 30, 200)

  if should_save:
    cv2.imwrite('cntr_ocr.jpg')

  return edged_image