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create script.py

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Murat Onur Yildirim 2022-10-04 12:34:34 +02:00 committed by GitHub
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import numpy as np
import matplotlib.pyplot as plt
import matplotlib.image as mpimg
def rgb2gray(png_file='file_example.png'):
img = mpimg.imread(png_file)
gray = np.dot(img[:,:,:3], [0.2989, 0.5870, 0.1140])
plt.imshow(gray, cmap=plt.get_cmap('gray'), vmin=0, vmax=1)
plt.axis('off')
plt.savefig('gray_' + png_file + '.png', dpi=300)