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| import cv2, matplotlib | |
| import numpy as np | |
| import matplotlib.pyplot as plt | |
| import os | |
| filename='yuudachi.png' | |
| filename_base, ext = os.path.splitext(filename) | |
| img = cv2.imread(filename, 1) | |
| kernel = np.ones((3,3),np.uint8) | |
| dilate_img=cv2.dilate(img,kernel,iterations=1) | |
| dilate_diff_img=cv2.absdiff(img, dilate_img) | |
| cv2.imwrite(filename_base + '-linedraw' + ext, 255 - dilate_diff_img) |
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