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August 29, 2015 14:16
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| import matplotlib as mpl | |
| mpl.use('Agg') | |
| import matplotlib.image as mpimg | |
| import matplotlib.pyplot as plt | |
| import numpy as np | |
| img=mpimg.imread('image.jpg') | |
| lum_img = img[:,:,0] | |
| p = plt.hist(lum_img.flatten(), 256, range=(0.0,255), fc='k', ec='k') | |
| plt.savefig('out.png') | |
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Try
range=(0, 255)for a more exciting plot!