mirror of
https://github.com/wassname/scikit-image.git
synced 2026-06-29 03:37:34 +08:00
Johannes Schönberger
60 lines
2.3 KiB
Python
60 lines
2.3 KiB
Python
import numpy as np
|
|
from numpy.testing import assert_array_equal
|
|
from skimage.segmentation import find_boundaries, mark_boundaries
|
|
|
|
|
|
def test_find_boundaries():
|
|
image = np.zeros((10, 10))
|
|
image[2:7, 2:7] = 1
|
|
|
|
ref = np.array([[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
|
|
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
|
|
[0, 0, 1, 1, 1, 1, 1, 1, 0, 0],
|
|
[0, 0, 1, 0, 0, 0, 0, 1, 0, 0],
|
|
[0, 0, 1, 0, 0, 0, 0, 1, 0, 0],
|
|
[0, 0, 1, 0, 0, 0, 0, 1, 0, 0],
|
|
[0, 0, 1, 0, 0, 0, 0, 1, 0, 0],
|
|
[0, 0, 1, 1, 1, 1, 1, 0, 0, 0],
|
|
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
|
|
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0]])
|
|
|
|
result = find_boundaries(image)
|
|
assert_array_equal(result, ref)
|
|
|
|
|
|
def test_mark_boundaries():
|
|
image = np.zeros((10, 10))
|
|
label_image = np.zeros((10, 10))
|
|
label_image[2:7, 2:7] = 1
|
|
|
|
ref = np.array([[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
|
|
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
|
|
[0, 0, 1, 1, 1, 1, 1, 1, 0, 0],
|
|
[0, 0, 1, 0, 0, 0, 0, 1, 0, 0],
|
|
[0, 0, 1, 0, 0, 0, 0, 1, 0, 0],
|
|
[0, 0, 1, 0, 0, 0, 0, 1, 0, 0],
|
|
[0, 0, 1, 0, 0, 0, 0, 1, 0, 0],
|
|
[0, 0, 1, 1, 1, 1, 1, 0, 0, 0],
|
|
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
|
|
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0]])
|
|
result = mark_boundaries(image, label_image, color=(1, 1, 1)).mean(axis=2)
|
|
assert_array_equal(result, ref)
|
|
|
|
ref = np.array([[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
|
|
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
|
|
[0, 0, 1, 1, 1, 1, 1, 1, 2, 0],
|
|
[0, 0, 1, 2, 2, 2, 2, 1, 2, 0],
|
|
[0, 0, 1, 2, 0, 0, 0, 1, 2, 0],
|
|
[0, 0, 1, 2, 0, 0, 0, 1, 2, 0],
|
|
[0, 0, 1, 2, 0, 0, 0, 1, 2, 0],
|
|
[0, 0, 1, 1, 1, 1, 1, 2, 2, 0],
|
|
[0, 0, 2, 2, 2, 2, 2, 2, 0, 0],
|
|
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0]])
|
|
result = mark_boundaries(image, label_image, color=(1, 1, 1),
|
|
outline_color=(2, 2, 2)).mean(axis=2)
|
|
assert_array_equal(result, ref)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
np.testing.run_module_suite()
|