python-pillow/Pillow
1
1
Fork 0
mirror of https://github.com/python-pillow/Pillow.git synced 2025-01-12 18:26:17 +03:00
Code Issues Packages Projects Releases Wiki Activity

tests

Browse Source
This commit is contained in:
Alexander 2018-04-11 17:05:48 +03:00
parent 70c453b857
commit acfd4845c6
1 changed files with 143 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

182
Tests/test_color_lut.py
View File

@ -5,7 +5,7 @@ from helper import unittest, PillowTestCase
class TestColorLut3DCoreAPI(PillowTestCase):
def generate_unit_table(self, channels, size):
def generate_identity_table(self, channels, size):
if isinstance(size, tuple):
size1D, size2D, size3D = size
else:
@ -32,31 +32,31 @@ class TestColorLut3DCoreAPI(PillowTestCase):
with self.assertRaisesRegexp(ValueError, "filter"):
im.im.color_lut_3d('RGB', Image.CUBIC,
*self.generate_unit_table(3, 3))
*self.generate_identity_table(3, 3))
with self.assertRaisesRegexp(ValueError, "image mode"):
im.im.color_lut_3d('wrong', Image.LINEAR,
*self.generate_unit_table(3, 3))
*self.generate_identity_table(3, 3))
with self.assertRaisesRegexp(ValueError, "table_channels"):
im.im.color_lut_3d('RGB', Image.LINEAR,
*self.generate_unit_table(5, 3))
*self.generate_identity_table(5, 3))
with self.assertRaisesRegexp(ValueError, "table_channels"):
im.im.color_lut_3d('RGB', Image.LINEAR,
*self.generate_unit_table(1, 3))
*self.generate_identity_table(1, 3))
with self.assertRaisesRegexp(ValueError, "table_channels"):
im.im.color_lut_3d('RGB', Image.LINEAR,
*self.generate_unit_table(2, 3))
*self.generate_identity_table(2, 3))
with self.assertRaisesRegexp(ValueError, "Table size"):
im.im.color_lut_3d('RGB', Image.LINEAR,
*self.generate_unit_table(3, (1, 3, 3)))
*self.generate_identity_table(3, (1, 3, 3)))
with self.assertRaisesRegexp(ValueError, "Table size"):
im.im.color_lut_3d('RGB', Image.LINEAR,
*self.generate_unit_table(3, (66, 3, 3)))
*self.generate_identity_table(3, (66, 3, 3)))
with self.assertRaisesRegexp(ValueError, r"size1D \* size2D \* size3D"):
im.im.color_lut_3d('RGB', Image.LINEAR,
@ -70,67 +70,67 @@ class TestColorLut3DCoreAPI(PillowTestCase):
im = Image.new('RGB', (10, 10), 0)
im.im.color_lut_3d('RGB', Image.LINEAR,
*self.generate_unit_table(3, 3))
*self.generate_identity_table(3, 3))
im.im.color_lut_3d('CMYK', Image.LINEAR,
*self.generate_unit_table(4, 3))
*self.generate_identity_table(4, 3))
im.im.color_lut_3d('RGB', Image.LINEAR,
*self.generate_unit_table(3, (2, 3, 3)))
*self.generate_identity_table(3, (2, 3, 3)))
im.im.color_lut_3d('RGB', Image.LINEAR,
*self.generate_unit_table(3, (65, 3, 3)))
*self.generate_identity_table(3, (65, 3, 3)))
im.im.color_lut_3d('RGB', Image.LINEAR,
*self.generate_unit_table(3, (3, 65, 3)))
*self.generate_identity_table(3, (3, 65, 3)))
im.im.color_lut_3d('RGB', Image.LINEAR,
*self.generate_unit_table(3, (3, 3, 65)))
*self.generate_identity_table(3, (3, 3, 65)))
def test_wrong_mode(self):
with self.assertRaisesRegexp(ValueError, "wrong mode"):
im = Image.new('L', (10, 10), 0)
im.im.color_lut_3d('RGB', Image.LINEAR,
*self.generate_unit_table(3, 3))
*self.generate_identity_table(3, 3))
with self.assertRaisesRegexp(ValueError, "wrong mode"):
im = Image.new('RGB', (10, 10), 0)
im.im.color_lut_3d('L', Image.LINEAR,
*self.generate_unit_table(3, 3))
*self.generate_identity_table(3, 3))
with self.assertRaisesRegexp(ValueError, "wrong mode"):
im = Image.new('L', (10, 10), 0)
im.im.color_lut_3d('L', Image.LINEAR,
*self.generate_unit_table(3, 3))
*self.generate_identity_table(3, 3))
with self.assertRaisesRegexp(ValueError, "wrong mode"):
im = Image.new('RGB', (10, 10), 0)
im.im.color_lut_3d('RGBA', Image.LINEAR,
*self.generate_unit_table(3, 3))
*self.generate_identity_table(3, 3))
with self.assertRaisesRegexp(ValueError, "wrong mode"):
im = Image.new('RGB', (10, 10), 0)
im.im.color_lut_3d('RGB', Image.LINEAR,
*self.generate_unit_table(4, 3))
*self.generate_identity_table(4, 3))
def test_correct_mode(self):
im = Image.new('RGBA', (10, 10), 0)
im.im.color_lut_3d('RGBA', Image.LINEAR,
*self.generate_unit_table(3, 3))
*self.generate_identity_table(3, 3))
im = Image.new('RGBA', (10, 10), 0)
im.im.color_lut_3d('RGBA', Image.LINEAR,
*self.generate_unit_table(4, 3))
*self.generate_identity_table(4, 3))
im = Image.new('RGB', (10, 10), 0)
im.im.color_lut_3d('HSV', Image.LINEAR,
*self.generate_unit_table(3, 3))
*self.generate_identity_table(3, 3))
im = Image.new('RGB', (10, 10), 0)
im.im.color_lut_3d('RGBA', Image.LINEAR,
*self.generate_unit_table(4, 3))
*self.generate_identity_table(4, 3))
def test_units(self):
def test_identities(self):
g = Image.linear_gradient('L')
im = Image.merge('RGB', [g, g.transpose(Image.ROTATE_90),
g.transpose(Image.ROTATE_180)])
@ -139,14 +139,14 @@ class TestColorLut3DCoreAPI(PillowTestCase):
for size in [2, 3, 5, 7, 11, 16, 17]:
self.assert_image_equal(im, im._new(
im.im.color_lut_3d('RGB', Image.LINEAR,
*self.generate_unit_table(3, size))))
*self.generate_identity_table(3, size))))
# Not so fast
self.assert_image_equal(im, im._new(
im.im.color_lut_3d('RGB', Image.LINEAR,
*self.generate_unit_table(3, (2, 2, 65)))))
*self.generate_identity_table(3, (2, 2, 65)))))
def test_units_4channels(self):
def test_identities_4_channels(self):
g = Image.linear_gradient('L')
im = Image.merge('RGB', [g, g.transpose(Image.ROTATE_90),
g.transpose(Image.ROTATE_180)])
@ -155,7 +155,7 @@ class TestColorLut3DCoreAPI(PillowTestCase):
self.assert_image_equal(
Image.merge('RGBA', (im.split()*2)[:4]),
im._new(im.im.color_lut_3d('RGBA', Image.LINEAR,
*self.generate_unit_table(4, 17))))
*self.generate_identity_table(4, 17))))
def test_copy_alpha_channel(self):
g = Image.linear_gradient('L')
@ -165,7 +165,7 @@ class TestColorLut3DCoreAPI(PillowTestCase):
self.assert_image_equal(im, im._new(
im.im.color_lut_3d('RGBA', Image.LINEAR,
*self.generate_unit_table(3, 17))))
*self.generate_identity_table(3, 17))))
def test_channels_order(self):
g = Image.linear_gradient('L')
@ -266,7 +266,17 @@ class TestColorLut3DFilter(PillowTestCase):
lut = ImageFilter.Color3DLUT((2, 2, 2), [(0, 1, 2, 3)] * 8,
channels=4)
def test_generate(self):
class TestGenerateColorLut3D(PillowTestCase):
def test_wrong_channels_count(self):
with self.assertRaisesRegexp(ValueError, "should have either channels"):
ImageFilter.Color3DLUT.generate(5, lambda r, g, b: (r, g, b, r))
with self.assertRaisesRegexp(ValueError, "should have either channels"):
ImageFilter.Color3DLUT.generate(5, channels=4,
callback=lambda r, g, b: (r, g, b))
def test_3_channels(self):
lut = ImageFilter.Color3DLUT.generate(5, lambda r, g, b: (r, g, b))
self.assertEqual(tuple(lut.size), (5, 5, 5))
self.assertEqual(lut.name, "Color 3D LUT")
@ -274,11 +284,7 @@ class TestColorLut3DFilter(PillowTestCase):
0.0, 0.0, 0.0, 0.25, 0.0, 0.0, 0.5, 0.0, 0.0, 0.75, 0.0, 0.0,
1.0, 0.0, 0.0, 0.0, 0.25, 0.0, 0.25, 0.25, 0.0, 0.5, 0.25, 0.0])
g = Image.linear_gradient('L')
im = Image.merge('RGB', [g, g.transpose(Image.ROTATE_90),
g.transpose(Image.ROTATE_180)])
self.assertEqual(im, im.filter(lut))
def test_4_channels(self):
lut = ImageFilter.Color3DLUT.generate(5, channels=4,
callback=lambda r, g, b: (b, r, g, (r+g+b) / 2))
self.assertEqual(tuple(lut.size), (5, 5, 5))
@ -287,12 +293,110 @@ class TestColorLut3DFilter(PillowTestCase):
0.0, 0.0, 0.0, 0.0, 0.0, 0.25, 0.0, 0.125, 0.0, 0.5, 0.0, 0.25,
0.0, 0.75, 0.0, 0.375, 0.0, 1.0, 0.0, 0.5, 0.0, 0.0, 0.25, 0.125])
with self.assertRaisesRegexp(ValueError, "should have either channels"):
ImageFilter.Color3DLUT.generate(5, lambda r, g, b: (r, g, b, r))
def test_apply(self):
lut = ImageFilter.Color3DLUT.generate(5, lambda r, g, b: (r, g, b))
g = Image.linear_gradient('L')
im = Image.merge('RGB', [g, g.transpose(Image.ROTATE_90),
g.transpose(Image.ROTATE_180)])
self.assertEqual(im, im.filter(lut))
class TestTransformColorLut3D(PillowTestCase):
def test_wrong_args(self):
source = ImageFilter.Color3DLUT.generate(5, lambda r, g, b: (r, g, b))
with self.assertRaisesRegexp(ValueError, "Only 3 or 4 output"):
source.transform(lambda r, g, b: (r, g, b), channels=8)
with self.assertRaisesRegexp(ValueError, "should have either channels"):
ImageFilter.Color3DLUT.generate(5, channels=4,
callback=lambda r, g, b: (r, g, b))
source.transform(lambda r, g, b: (r, g, b), channels=4)
with self.assertRaisesRegexp(ValueError, "should have either channels"):
source.transform(lambda r, g, b: (r, g, b, 1))
with self.assertRaisesRegexp(TypeError, "takes exactly 4 arguments"):
source.transform(lambda r, g, b, a: (r, g, b))
def test_target_mode(self):
source = ImageFilter.Color3DLUT.generate(
2, lambda r, g, b: (r, g, b), target_mode='HSV')
lut = source.transform(lambda r, g, b: (r, g, b))
self.assertEqual(lut.mode, 'HSV')
lut = source.transform(lambda r, g, b: (r, g, b), target_mode='RGB')
self.assertEqual(lut.mode, 'RGB')
def test_3_to_3_channels(self):
source = ImageFilter.Color3DLUT.generate(
(3, 4, 5), lambda r, g, b: (r, g, b))
lut = source.transform(lambda r, g, b: (r*r, g*g, b*b))
self.assertEqual(tuple(lut.size), tuple(source.size))
self.assertEqual(len(lut.table), len(source.table))
self.assertNotEqual(lut.table, source.table)
self.assertEqual(lut.table[0:10], [
0.0, 0.0, 0.0, 0.25, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0])
def test_3_to_4_channels(self):
source = ImageFilter.Color3DLUT.generate(
(6, 5, 4), lambda r, g, b: (r, g, b))
lut = source.transform(lambda r, g, b: (r*r, g*g, b*b, 1), channels=4)
self.assertEqual(tuple(lut.size), tuple(source.size))
self.assertNotEqual(len(lut.table), len(source.table))
self.assertNotEqual(lut.table, source.table)
self.assertEqual(lut.table[0:16], [
0.0, 0.0, 0.0, 1, 0.2**2, 0.0, 0.0, 1,
0.4**2, 0.0, 0.0, 1, 0.6**2, 0.0, 0.0, 1])
def test_4_to_3_channels(self):
source = ImageFilter.Color3DLUT.generate(
(3, 6, 5), lambda r, g, b: (r, g, b, 1), channels=4)
lut = source.transform(lambda r, g, b, a: (a - r*r, a - g*g, a - b*b),
channels=3)
self.assertEqual(tuple(lut.size), tuple(source.size))
self.assertNotEqual(len(lut.table), len(source.table))
self.assertNotEqual(lut.table, source.table)
self.assertEqual(lut.table[0:18], [
1.0, 1.0, 1.0, 0.75, 1.0, 1.0, 0.0, 1.0, 1.0,
1.0, 0.96, 1.0, 0.75, 0.96, 1.0, 0.0, 0.96, 1.0])
def test_4_to_4_channels(self):
source = ImageFilter.Color3DLUT.generate(
(6, 5, 4), lambda r, g, b: (r, g, b, 1), channels=4)
lut = source.transform(lambda r, g, b, a: (r*r, g*g, b*b, a - 0.5))
self.assertEqual(tuple(lut.size), tuple(source.size))
self.assertEqual(len(lut.table), len(source.table))
self.assertNotEqual(lut.table, source.table)
self.assertEqual(lut.table[0:16], [
0.0, 0.0, 0.0, 0.5, 0.2**2, 0.0, 0.0, 0.5,
0.4**2, 0.0, 0.0, 0.5, 0.6**2, 0.0, 0.0, 0.5])
def test_with_normals_3_channels(self):
source = ImageFilter.Color3DLUT.generate(
(6, 5, 4), lambda r, g, b: (r*r, g*g, b*b))
lut = source.transform(
lambda nr, ng, nb, r, g, b: (nr - r, ng - g, nb - b),
with_normals=True)
self.assertEqual(tuple(lut.size), tuple(source.size))
self.assertEqual(len(lut.table), len(source.table))
self.assertNotEqual(lut.table, source.table)
self.assertEqual(lut.table[0:18], [
0.0, 0.0, 0.0, 0.16, 0.0, 0.0, 0.24, 0.0, 0.0,
0.24, 0.0, 0.0, 0.8 - (0.8**2), 0, 0, 0, 0, 0])
def test_with_normals_4_channels(self):
source = ImageFilter.Color3DLUT.generate(
(3, 6, 5), lambda r, g, b: (r*r, g*g, b*b, 1), channels=4)
lut = source.transform(
lambda nr, ng, nb, r, g, b, a: (nr - r, ng - g, nb - b, a-0.5),
with_normals=True)
self.assertEqual(tuple(lut.size), tuple(source.size))
self.assertEqual(len(lut.table), len(source.table))
self.assertNotEqual(lut.table, source.table)
self.assertEqual(lut.table[0:16], [
0.0, 0.0, 0.0, 0.5, 0.25, 0.0, 0.0, 0.5,
0.0, 0.0, 0.0, 0.5, 0.0, 0.16, 0.0, 0.5])
if __name__ == '__main__':