34 lines
748 B
Python
34 lines
748 B
Python
#练习1----------
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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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darker=image-20
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print(darker)
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top_left=image[0:2, 0:2]
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print(top_left)
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flipped=np.fliplr(image)
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print(flipped)
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#练习2-----------
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import numpy as np
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image=np.array([
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[255, 255, 0, 0],
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[255, 255, 0, 0],
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[ 0, 0, 255, 255],
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[ 0, 0, 255, 255]
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],dtype=np.uint8)
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#练习3-----------
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import numpy as np
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feature_map1=np.array([[1, 0, 1], [0, 1, 0], [1, 0, 1]])
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feature_map2=np.array([[1, 1, 1], [1, 0, 0], [1, 0, 0]])
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vector1=feature_map1.flatten()
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vector2=feature_map2.flatten()
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print("vector1", vector1)
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print("vector2", vector2) |