helpers.py 文件源码

def otsu_threshold(image, above_thresh_assigned=255, thresh_style=cv.THRESH_BINARY_INV):
  ''' apply otsu's binarization algorithm to find optimal threshold value. '''
  ret, thresholded = cv.threshold(image, 0, above_thresh_assigned, thresh_style  + cv.THRESH_OTSU)
  return { 'otsu_thresh': ret, 'image': thresholded }