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yosemitebandit/image_histogram.py

Created October 7, 2015 18:13
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histogram of an image
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image_histogram.py
import matplotlib.pyplot as plt
import numpy as np
from skimage import io
raw_image = io.imread('test.jpg')
figure_grid = gridspec.GridSpec(1, 1)
ax0 = plt.subplot(figure_grid[0, 0])
hist, bin_edges = np.histogram(raw_image, bins=np.arange(0, 256))
ax0.bar(bin_edges[:-1], hist, width=1)
plt.show()
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