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Add tests for rectangular structuring elements

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These tests fail.
This commit is contained in:
Tony S Yu
2011-10-15 04:19:04 -04:00
parent 9ce5ee7d71
commit 6366da861a
1 changed files with 30 additions and 21 deletions
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scikits/image/morphology/tests/test_morphology.py
+30 -21
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@@ -69,41 +69,50 @@ class TestEccentricStructuringElements():
self.black_pixel = 255 * np.ones((4, 4), dtype=np.uint8)
self.black_pixel[1, 1] = 0
self.white_pixel = 255 - self.black_pixel
self.selem = square(2)
self.selems = [square(2), rectangle(2, 2),
rectangle(2, 1), rectangle(1, 2)]
def test_dilate_erode_symmetry(self):
c = greyscale_erode(self.black_pixel, self.selem)
d = greyscale_dilate(self.white_pixel, self.selem)
assert np.all(c == (255 - d))
for s in self.selems:
c = greyscale_erode(self.black_pixel, s)
d = greyscale_dilate(self.white_pixel, s)
assert np.all(c == (255 - d))
def test_open_dark_pixel(self):
grey_open = greyscale_open(self.black_pixel, self.selem)
assert np.all(grey_open == self.black_pixel)
def test_open_black_pixel(self):
for s in self.selems:
grey_open = greyscale_open(self.black_pixel, s)
assert np.all(grey_open == self.black_pixel)
def test_close_white_pixel(self):
grey_close = greyscale_close(self.white_pixel, self.selem)
assert np.all(grey_close == self.white_pixel)
for s in self.selems:
grey_close = greyscale_close(self.white_pixel, s)
assert np.all(grey_close == self.white_pixel)
def test_open_white_pixel(self):
assert np.all(greyscale_open(self.white_pixel, self.selem) == 0)
for s in self.selems:
assert np.all(greyscale_open(self.white_pixel, s) == 0)
def test_close_dark_pixel(self):
assert np.all(greyscale_close(self.black_pixel, self.selem) == 255)
def test_close_black_pixel(self):
for s in self.selems:
assert np.all(greyscale_close(self.black_pixel, s) == 255)
def test_white_tophat_white_pixel(self):
tophat = greyscale_white_top_hat(self.white_pixel, self.selem)
assert np.all(tophat == self.white_pixel)
for s in self.selems:
tophat = greyscale_white_top_hat(self.white_pixel, s)
assert np.all(tophat == self.white_pixel)
def test_black_tophat_black_pixel(self):
tophat = greyscale_black_top_hat(self.black_pixel, self.selem)
assert np.all(tophat == (255 - self.black_pixel))
for s in self.selems:
tophat = greyscale_black_top_hat(self.black_pixel, s)
assert np.all(tophat == (255 - self.black_pixel))
def test_white_tophat_black_pixel(self):
tophat = greyscale_white_top_hat(self.black_pixel, self.selem)
assert np.all(tophat == 0)
for s in self.selems:
tophat = greyscale_white_top_hat(self.black_pixel, s)
assert np.all(tophat == 0)
def test_black_tophat_white_pixel(self):
tophat = greyscale_black_top_hat(self.white_pixel, self.selem)
assert np.all(tophat == 0)
for s in self.selems:
tophat = greyscale_black_top_hat(self.white_pixel, s)
assert np.all(tophat == 0)