mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-09-21 19:38:57 +03:00
75 lines
2.1 KiB
Python
75 lines
2.1 KiB
Python
from helper import unittest, PillowTestCase, hopper
|
|
|
|
from PIL import Image
|
|
from PIL import ImageChops
|
|
|
|
|
|
class TestImageChops(PillowTestCase):
|
|
|
|
def test_sanity(self):
|
|
|
|
im = hopper("L")
|
|
|
|
ImageChops.constant(im, 128)
|
|
ImageChops.duplicate(im)
|
|
ImageChops.invert(im)
|
|
ImageChops.lighter(im, im)
|
|
ImageChops.darker(im, im)
|
|
ImageChops.difference(im, im)
|
|
ImageChops.multiply(im, im)
|
|
ImageChops.screen(im, im)
|
|
|
|
ImageChops.add(im, im)
|
|
ImageChops.add(im, im, 2.0)
|
|
ImageChops.add(im, im, 2.0, 128)
|
|
ImageChops.subtract(im, im)
|
|
ImageChops.subtract(im, im, 2.0)
|
|
ImageChops.subtract(im, im, 2.0, 128)
|
|
|
|
ImageChops.add_modulo(im, im)
|
|
ImageChops.subtract_modulo(im, im)
|
|
|
|
ImageChops.blend(im, im, 0.5)
|
|
ImageChops.composite(im, im, im)
|
|
|
|
ImageChops.offset(im, 10)
|
|
ImageChops.offset(im, 10, 20)
|
|
|
|
def test_logical(self):
|
|
|
|
def table(op, a, b):
|
|
out = []
|
|
for x in (a, b):
|
|
imx = Image.new("1", (1, 1), x)
|
|
for y in (a, b):
|
|
imy = Image.new("1", (1, 1), y)
|
|
out.append(op(imx, imy).getpixel((0, 0)))
|
|
return tuple(out)
|
|
|
|
self.assertEqual(
|
|
table(ImageChops.logical_and, 0, 1), (0, 0, 0, 255))
|
|
self.assertEqual(
|
|
table(ImageChops.logical_or, 0, 1), (0, 255, 255, 255))
|
|
self.assertEqual(
|
|
table(ImageChops.logical_xor, 0, 1), (0, 255, 255, 0))
|
|
|
|
self.assertEqual(
|
|
table(ImageChops.logical_and, 0, 128), (0, 0, 0, 255))
|
|
self.assertEqual(
|
|
table(ImageChops.logical_or, 0, 128), (0, 255, 255, 255))
|
|
self.assertEqual(
|
|
table(ImageChops.logical_xor, 0, 128), (0, 255, 255, 0))
|
|
|
|
self.assertEqual(
|
|
table(ImageChops.logical_and, 0, 255), (0, 0, 0, 255))
|
|
self.assertEqual(
|
|
table(ImageChops.logical_or, 0, 255), (0, 255, 255, 255))
|
|
self.assertEqual(
|
|
table(ImageChops.logical_xor, 0, 255), (0, 255, 255, 0))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|
|
|
|
# End of file
|