image_preprocessing.py 文件源码

def adaptive_thresholding(img):
  # adaptive mean binary threshold
  th4 = cv2.adaptiveThreshold(img,255,cv2.ADAPTIVE_THRESH_MEAN_C,cv2.THRESH_BINARY,11,2)
  # adaptive gaussian thresholding
  th5 = cv2.adaptiveThreshold(img,255,cv2.ADAPTIVE_THRESH_GAUSSIAN_C,cv2.THRESH_BINARY,11,2)
  return th5