25 lines
457 B
Python
25 lines
457 B
Python
import numpy as np
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image = np.array([
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[100, 150, 200],
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[80, 120, 180],
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[60, 90, 140]
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], dtype=np.uint8)
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print("原图:")
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print(image)
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print()
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darkened = np.clip(image.astype(np.int16) - 20, 0, 255).astype(np.uint8)
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print("变暗20后的图像:")
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print(darkened)
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print()
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cropped = image[0:2, 0:2]
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print("裁剪左上角(2×2区域):")
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print(cropped)
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print()
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flipped = np.fliplr(image)
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print("水平翻转后的图像:")
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print(flipped) |