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Integrate new test cases from @odebeir and fix old function names of dilate and erode

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Johannes Schönberger
2013-07-31 19:45:55 +02:00
parent 9f68e71412
commit 7be96b4a01
1 changed files with 47 additions and 2 deletions
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skimage/filter/rank/tests/test_rank.py
+47 -2
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@@ -51,7 +51,7 @@ def test_compare_with_cmorph_dilate():
for r in range(1, 20, 1):
elem = np.ones((r, r), dtype=np.uint8)
rank.maximum(image=image, selem=elem, out=out, mask=mask)
cm = cmorph.dilate(image=image, selem=elem)
cm = cmorph._dilate(image=image, selem=elem)
assert_array_equal(out, cm)
@@ -65,7 +65,7 @@ def test_compare_with_cmorph_erode():
for r in range(1, 20, 1):
elem = np.ones((r, r), dtype=np.uint8)
rank.minimum(image=image, selem=elem, out=out, mask=mask)
cm = cmorph.erode(image=image, selem=elem)
cm = cmorph._erode(image=image, selem=elem)
assert_array_equal(out, cm)
@@ -454,5 +454,50 @@ def test_bilateral():
assert rank.pop_bilateral(image, selem, s0=11, s1=11)[10, 10] == 2
def test_percentile_min():
# check that percentile p0 = 0 is identical to local min
img = data.camera()
img16 = img.astype(np.uint16)
selem = disk(15)
# check for 8bit
img_p0 = rank.percentile(img, selem=selem, p0=0)
img_min = rank.minimum(img, selem=selem)
assert_array_equal(img_p0, img_min)
# check for 16bit
img_p0 = rank.percentile(img16, selem=selem, p0=0)
img_min = rank.minimum(img16, selem=selem)
assert_array_equal(img_p0, img_min)
def test_percentile_max():
# check that percentile p0 = 1 is identical to local max
img = data.camera()
img16 = img.astype(np.uint16)
selem = disk(15)
# check for 8bit
img_p0 = rank.percentile(img, selem=selem, p0=1.)
img_max = rank.maximum(img, selem=selem)
assert_array_equal(img_p0, img_max)
# check for 16bit
img_p0 = rank.percentile(img16, selem=selem, p0=1.)
img_max = rank.maximum(img16, selem=selem)
assert_array_equal(img_p0, img_max)
def test_percentile_median():
# check that percentile p0 = 0.5 is identical to local median
img = data.camera()
img16 = img.astype(np.uint16)
selem = disk(15)
# check for 8bit
img_p0 = rank.percentile(img, selem=selem, p0=.5)
img_max = rank.median(img, selem=selem)
assert_array_equal(img_p0, img_max)
# check for 16bit
img_p0 = rank.percentile(img16, selem=selem, p0=.5)
img_max = rank.median(img16, selem=selem)
assert_array_equal(img_p0, img_max)
if __name__ == "__main__":
run_module_suite()