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data tests

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homm 2014-10-13 04:07:17 +04:00
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from helper import unittest, PillowTestCase
from PIL import Image, ImageFilter
sample = Image.new("L", (7, 5))
sample.putdata(sum([
[210, 50, 20, 10, 220, 230, 80 ],
[190, 210, 20, 180, 170, 40, 110],
[120, 210, 250, 60, 220, 0, 220],
[220, 40, 230, 80, 130, 250, 40 ],
[250, 0, 80, 30, 60, 20, 110],
], []))
def box_blur(self, radius):
return self._new(self.im.box_blur(radius))
class TestBoxBlur(PillowTestCase):
def assertImage(self, im, data, delta=0):
it = iter(im.getdata())
for data_row in data:
im_row = [next(it) for _ in range(im.size[0])]
if any(
abs(data_v - im_v) > delta
for data_v, im_v in zip(data_row, im_row)
):
self.assertEqual(im_row, data_row)
self.assertRaises(StopIteration, next, it)
def test_radius_0(self):
self.assertImage(
box_blur(sample, 0),
[
[210, 50, 20, 10, 220, 230, 80 ],
[190, 210, 20, 180, 170, 40, 110],
[120, 210, 250, 60, 220, 0, 220],
[220, 40, 230, 80, 130, 250, 40 ],
[250, 0, 80, 30, 60, 20, 110],
]
)
def test_radius_0_02(self):
self.assertImage(
box_blur(sample, 0.02),
[
[206, 55, 20, 17, 215, 223, 83 ],
[189, 203, 31, 171, 169, 46, 110],
[125, 206, 241, 69, 210, 13, 210],
[215, 49, 221, 82, 131, 235, 48 ],
[244, 7, 80, 32, 60, 27, 107],
],
delta=2,
)
def test_radius_0_05(self):
self.assertImage(
box_blur(sample, 0.05),
[
[202, 62, 22, 27, 209, 215, 88 ],
[188, 194, 44, 161, 168, 56, 111],
[131, 201, 229, 81, 198, 31, 198],
[209, 62, 209, 86, 133, 216, 59 ],
[237, 17, 80, 36, 60, 35, 103],
],
delta=2,
)
def test_radius_0_1(self):
self.assertImage(
box_blur(sample, 0.1),
[
[196, 72, 24, 40, 200, 203, 93 ],
[187, 183, 62, 148, 166, 68, 111],
[139, 193, 213, 96, 182, 54, 182],
[201, 78, 193, 91, 133, 191, 73 ],
[227, 31, 80, 42, 61, 47, 99 ],
],
delta=1,
)
def test_radius_0_5(self):
self.assertImage(
box_blur(sample, 0.5),
[
[176, 101, 46, 83, 163, 165, 111],
[176, 149, 108, 122, 144, 120, 117],
[164, 171, 159, 141, 134, 119, 129],
[170, 136, 133, 114, 116, 124, 109],
[184, 95, 72, 70, 69, 81, 89 ],
],
delta=1,
)
def test_radius_1(self):
self.assertImage(
box_blur(sample, 1),
[
[170, 109, 63, 97, 146, 153, 116],
[168, 142, 112, 128, 126, 143, 121],
[169, 166, 142, 149, 126, 131, 114],
[159, 156, 109, 127, 94, 117, 112],
[164, 128, 63, 87, 76, 89, 90 ],
],
delta=1,
)
def test_radius_1_5(self):
self.assertImage(
box_blur(sample, 1.5),
[
[155, 120, 105, 112, 124, 137, 130],
[160, 136, 124, 125, 127, 134, 130],
[166, 147, 130, 125, 120, 121, 119],
[168, 145, 119, 109, 103, 105, 110],
[168, 134, 96, 85, 85, 89, 97 ],
],
delta=1,
)