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import numpy as np
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import matplotlib.pyplot as plt
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import cv2
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orig = cv2.imread('disp_orig.png', cv2.IMREAD_ANYDEPTH).astype(np.float32)
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ta = cv2.imread('disp_ta.png', cv2.IMREAD_ANYDEPTH).astype(np.float32)
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es = cv2.imread('disp_es.png', cv2.IMREAD_ANYDEPTH).astype(np.float32)
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plt.figure()
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plt.subplot(2, 2, 1);
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plt.imshow(orig / 16, vmin=0, vmax=4, cmap='magma')
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plt.subplot(2, 2, 2);
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plt.imshow(ta / 16, vmin=0, vmax=4, cmap='magma')
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plt.subplot(2, 2, 3);
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plt.imshow(es / 16, vmin=0, vmax=4, cmap='magma')
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plt.subplot(2, 2, 4);
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plt.imshow(np.abs(es - ta) / 16, vmin=0, vmax=1, cmap='magma')
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plt.show()
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