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Nelle Varoquaux
31 lines
832 B
Python
31 lines
832 B
Python
"""
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===============================================================================
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Harris Corner detector
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===============================================================================
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The Harris corner filter detects interest points using edge detection in many
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direction.
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"""
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from matplotlib import pyplot as plt
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from matplotlib import cm
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from skimage import data
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from skimage.filter import harris
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def plot_harris_points(image, filtered_coords):
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""" plots corners found in image"""
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plt.subplot(111)
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plt.imshow(image, cmap=cm.gray)
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plt.plot([p[1] for p in filtered_coords],
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[p[0] for p in filtered_coords],
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'b.')
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plt.axis('off')
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plt.show()
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im = data.lena().astype(float)
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filtered_coords = harris.harris_corner_detector(im, 6)
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plot_harris_points(im, filtered_coords)
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