import numpy as np

image = np.array([
    [100, 150, 200],
    [80,  120, 180],
    [60,  90,  140]
], dtype=np.uint8)

print("原图：")
print(image)
print("-" * 20)
#1
dark_imafe = np.clip(image  20, 0, 255).astype(np.uint8)
print("变暗20后:")
print(dark_imafe)
print("-" * 20)
#2
crop_image = dark_imafe[0:2, 0:2]
print("裁剪左上角2*2后:")
print(crop_image)
print("-" * 20)
#3
flip_image = np.fliolr(crop_image)
print("水平翻转后：")
print(flip_image)