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16 lines
644 B
16 lines
644 B
3 years ago
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import cv2
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import matplotlib.pyplot as plt
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# 原始图像
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img_gray = cv2.imread('D:/Python/SpatialProcessing/HistogramModification/img/cake.jpg', cv2.IMREAD_GRAYSCALE)
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# 直方图修正
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equ = cv2.equalizeHist(img_gray)
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# 显示图像
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plt.rcParams['font.sans-serif'] = ['SimHei']
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plt.subplot(221), plt.imshow(img_gray, cmap=plt.cm.gray), plt.title('原始图像'), plt.axis('off')
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plt.subplot(222), plt.hist(img_gray.ravel(), 256), plt.title('灰度直方图')
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plt.subplot(223), plt.imshow(equ, cmap=plt.cm.gray), plt.title('修正图像'), plt.axis('off')
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plt.subplot(224), plt.hist(equ.ravel(), 256), plt.title('修正直方图')
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plt.show()
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