上传文件至 /

ljh1.py

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+import numpy as np
+
+
+img = np.array([
+    [255, 255, 0, 0],
+    [255, 255, 0, 0],
+    [0, 0, 255, 255],
+    [0, 0, 255, 255]
+], dtype=np.uint8)
+
+
+white_count = np.sum(img == 255)
+black_count = np.sum(img == 0)
+print(f"白色像素(255)数量：{white_count}")
+print(f"黑色像素(0)数量：{black_count}")
+print("-" * 20)
+
+
+img_flip = np.fliplr(img)
+print("水平翻转后的图像：")
+print(img_flip)
+print("-" * 20)
+
+
+img_transpose = img.T
+img_rot90_ccw = np.fliplr(img_transpose)
+print("逆时针旋转90度后的图像：")
+print(img_rot90_ccw)