Computing horizontal gradients with the Sobel filter

This example illustrates the use of the horizontal Sobel filter, to compute horizontal gradients.

../../../_images/plot_sobel_1.png

Python ソースコード: plot_sobel.py

from skimage import data
# scikit-image has changes its API
try:
from skimage import filters
except ImportError:
from skimage import filter as filters
import matplotlib.pyplot as plt
text = data.text()
hsobel_text = filters.hsobel(text)
plt.figure(figsize=(12, 3))
plt.subplot(121)
plt.imshow(text, cmap='gray', interpolation='nearest')
plt.axis('off')
plt.subplot(122)
plt.imshow(hsobel_text, cmap='spectral', interpolation='nearest')
plt.axis('off')
plt.tight_layout()
plt.show()

Total running time of the example: 0.28 seconds ( 0 minutes 0.28 seconds)