python 图片外围置零 np.pad操作

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于 2020-07-04 00:59:12 发布

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分类专栏： python使用文章标签： python np.pad

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python 图片外围置零 np.pad操作

path1 = 'I:\\xj\\pillar_train_val_test\\val\\labels_half_new'
path2 = 'I:\\xj\\pillar_train_val_test\\val\\labels_half_new_draw'

for filename in os.listdir(path1):
    img = cv2.imread(os.path.join(path1, filename), 0)
    shape = img.shape
    img_new = img[2:shape[0]-2, 2:shape[1]-2]
    img_new = np.pad(img_new, ((2,2), (2,2)), 'constant',constant_values = (0,0))
    cv2.imwrite(os.path.join(path2, filename), img_new)
    print (filename)