完成作业3-1-3

练习1.py

@@ -0,0 +1,25 @@
+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()
+
+darkened = np.clip(image.astype(np.int16) - 20, 0, 255).astype(np.uint8)
+print("变暗20后的图像:")
+print(darkened)
+print()
+
+cropped = image[0:2, 0:2]
+print("裁剪左上角(2×2区域):")
+print(cropped)
+print()
+
+flipped = np.fliplr(image)
+print("水平翻转后的图像：")
+print(flipped)