mirror of
https://github.com/wassname/scikit-image.git
synced 2026-06-27 22:23:29 +08:00
François Boulogne
61 lines
1.2 KiB
Python
61 lines
1.2 KiB
Python
"""
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===========
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Fill shapes
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===========
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This example shows how to fill several different shapes:
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* line
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* polygon
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* circle
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* ellipse
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"""
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import numpy as np
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import matplotlib.pyplot as plt
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from skimage.draw import line, polygon, circle, circle_perimeter, \
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ellipse, ellipse_perimeter
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import numpy as np
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import math
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img = np.zeros((500, 500, 3), dtype=np.uint8)
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# draw line
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rr, cc = line(120, 123, 20, 400)
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img[rr,cc,0] = 255
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# fill polygon
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poly = np.array((
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(300, 300),
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(480, 320),
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(380, 430),
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(220, 590),
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(300, 300),
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))
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rr, cc = polygon(poly[:,0], poly[:,1], img.shape)
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img[rr,cc,1] = 255
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# fill circle
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rr, cc = circle(200, 200, 100, img.shape)
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img[rr,cc,:] = (255, 255, 0)
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# fill ellipse
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rr, cc = ellipse(300, 300, 100, 200, img.shape)
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img[rr,cc,2] = 255
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# circle
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rr, cc = circle_perimeter(120, 400, 15)
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img[rr, cc, :] = (255, 0, 0)
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# ellipses
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rr, cc = ellipse_perimeter(120, 400, 60, 20, orientation=math.pi / 4.)
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img[rr, cc, :] = (255, 0, 255)
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rr, cc = ellipse_perimeter(120, 400, 60, 20, orientation=-math.pi / 4.)
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img[rr, cc, :] = (0, 0, 255)
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rr, cc = ellipse_perimeter(120, 400, 60, 20, orientation=math.pi / 2.)
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img[rr, cc, :] = (255, 255, 255)
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plt.imshow(img)
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plt.show()
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