page.py 文件源码

def reduce_noise_edges(im):
    structuring_element = cv2.getStructuringElement(cv2.MORPH_RECT, (1, 1))
    opening = cv2.morphologyEx(im, cv2.MORPH_OPEN, structuring_element)
    maxed_rows = rank_filter(opening, -4, size=(1, 20))
    maxed_cols = rank_filter(opening, -4, size=(20, 1))
    debordered = np.minimum(np.minimum(opening, maxed_rows), maxed_cols)
    return debordered