Files
scikit-image/doc/examples/plot_polygon.py
T
2012-04-23 15:37:07 +02:00

39 lines
608 B
Python

"""
============
Fill polygon
============
This example shows how to fill polygons in images.
"""
import matplotlib.pyplot as plt
from skimage.draw import polygon
import numpy as np
img = np.zeros((500, 500), 'uint8')
polygon1 = np.array((
(50, 50),
(150, 30),
(400, 100),
(300, 200),
(480, 400),
(100, 420),
(50, 50),
))
polygon2 = np.array((
(300, 300),
(480, 320),
(380, 430),
(220, 590),
(300, 300),
))
rr, cc = polygon(polygon1, img.shape)
img[rr,cc] = 127
rr, cc = polygon(polygon2, img.shape)
img[rr,cc] = 255
plt.gray()
plt.imshow(img)
plt.show()