Equalizing the histogram of an image

Histogram equalizing makes images have a uniform histogram.

../../../_images/plot_equalize_hist_1.png

Python source code: plot_equalize_hist.py

from skimage import data, exposure

import matplotlib.pyplot as plt



camera = data.camera()

camera_equalized = exposure.equalize_hist(camera)



plt.figure(figsize=(7, 3))



plt.subplot(121)

plt.imshow(camera, cmap='gray', interpolation='nearest')

plt.axis('off')

plt.subplot(122)

plt.imshow(camera_equalized, cmap='gray', interpolation='nearest')

plt.axis('off')

plt.tight_layout()

plt.show()

Total running time of the example: 0.13 seconds ( 0 minutes 0.13 seconds)