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40 regels
874 B
40 regels
874 B
# 正则化图像
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def regularizeImage(img, size = (8, 8)):
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return img.resize(size).convert('L')
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# 计算hash值
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def getHashCode(img, size = (8, 8)):
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pixel = []
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for i in range(size[0]):
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for j in range(size[1]):
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pixel.append(img.getpixel((i, j)))
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mean = sum(pixel) / len(pixel)
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result = []
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for i in pixel:
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if i > mean:
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result.append(1)
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else:
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result.append(0)
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return result
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# 比较hash值
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def compHashCode(hc1, hc2):
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cnt = 0
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for i, j in zip(hc1, hc2):
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if i == j:
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cnt += 1
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return cnt
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# 计算平均哈希算法相似度
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def calaHashSimilarity(img1, img2):
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img1 = regularizeImage(img1)
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img2 = regularizeImage(img2)
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hc1 = getHashCode(img1)
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hc2 = getHashCode(img2)
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return compHashCode(hc1, hc2)
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__all__ = ['calaHashSimilarity']
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