mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-12-25 09:26:16 +03:00
131 lines
4.8 KiB
Python
131 lines
4.8 KiB
Python
import helper
|
|
from helper import unittest, PillowTestCase
|
|
|
|
from PIL.Image import (FLIP_LEFT_RIGHT, FLIP_TOP_BOTTOM, ROTATE_90, ROTATE_180,
|
|
ROTATE_270, TRANSPOSE)
|
|
|
|
|
|
class TestImageTranspose(PillowTestCase):
|
|
|
|
hopper = {
|
|
'L': helper.hopper('L').crop((0, 0, 121, 127)).copy(),
|
|
'RGB': helper.hopper('RGB').crop((0, 0, 121, 127)).copy(),
|
|
}
|
|
|
|
def test_flip_left_right(self):
|
|
def transpose(mode):
|
|
im = self.hopper[mode]
|
|
out = im.transpose(FLIP_LEFT_RIGHT)
|
|
self.assertEqual(out.mode, mode)
|
|
self.assertEqual(out.size, im.size)
|
|
|
|
x, y = im.size
|
|
self.assertEqual(im.getpixel((1, 1)), out.getpixel((x-2, 1)))
|
|
self.assertEqual(im.getpixel((x-2, 1)), out.getpixel((1, 1)))
|
|
self.assertEqual(im.getpixel((1, y-2)), out.getpixel((x-2, y-2)))
|
|
self.assertEqual(im.getpixel((x-2, y-2)), out.getpixel((1, y-2)))
|
|
|
|
for mode in ("L", "RGB"):
|
|
transpose(mode)
|
|
|
|
def test_flip_top_bottom(self):
|
|
def transpose(mode):
|
|
im = self.hopper[mode]
|
|
out = im.transpose(FLIP_TOP_BOTTOM)
|
|
self.assertEqual(out.mode, mode)
|
|
self.assertEqual(out.size, im.size)
|
|
|
|
x, y = im.size
|
|
self.assertEqual(im.getpixel((1, 1)), out.getpixel((1, y-2)))
|
|
self.assertEqual(im.getpixel((x-2, 1)), out.getpixel((x-2, y-2)))
|
|
self.assertEqual(im.getpixel((1, y-2)), out.getpixel((1, 1)))
|
|
self.assertEqual(im.getpixel((x-2, y-2)), out.getpixel((x-2, 1)))
|
|
|
|
for mode in ("L", "RGB"):
|
|
transpose(mode)
|
|
|
|
def test_rotate_90(self):
|
|
def transpose(mode):
|
|
im = self.hopper[mode]
|
|
out = im.transpose(ROTATE_90)
|
|
self.assertEqual(out.mode, mode)
|
|
self.assertEqual(out.size, im.size[::-1])
|
|
|
|
x, y = im.size
|
|
self.assertEqual(im.getpixel((1, 1)), out.getpixel((1, x-2)))
|
|
self.assertEqual(im.getpixel((x-2, 1)), out.getpixel((1, 1)))
|
|
self.assertEqual(im.getpixel((1, y-2)), out.getpixel((y-2, x-2)))
|
|
self.assertEqual(im.getpixel((x-2, y-2)), out.getpixel((y-2, 1)))
|
|
|
|
for mode in ("L", "RGB"):
|
|
transpose(mode)
|
|
|
|
def test_rotate_180(self):
|
|
def transpose(mode):
|
|
im = self.hopper[mode]
|
|
out = im.transpose(ROTATE_180)
|
|
self.assertEqual(out.mode, mode)
|
|
self.assertEqual(out.size, im.size)
|
|
|
|
x, y = im.size
|
|
self.assertEqual(im.getpixel((1, 1)), out.getpixel((x-2, y-2)))
|
|
self.assertEqual(im.getpixel((x-2, 1)), out.getpixel((1, y-2)))
|
|
self.assertEqual(im.getpixel((1, y-2)), out.getpixel((x-2, 1)))
|
|
self.assertEqual(im.getpixel((x-2, y-2)), out.getpixel((1, 1)))
|
|
|
|
for mode in ("L", "RGB"):
|
|
transpose(mode)
|
|
|
|
def test_rotate_270(self):
|
|
def transpose(mode):
|
|
im = self.hopper[mode]
|
|
out = im.transpose(ROTATE_270)
|
|
self.assertEqual(out.mode, mode)
|
|
self.assertEqual(out.size, im.size[::-1])
|
|
|
|
x, y = im.size
|
|
self.assertEqual(im.getpixel((1, 1)), out.getpixel((y-2, 1)))
|
|
self.assertEqual(im.getpixel((x-2, 1)), out.getpixel((y-2, x-2)))
|
|
self.assertEqual(im.getpixel((1, y-2)), out.getpixel((1, 1)))
|
|
self.assertEqual(im.getpixel((x-2, y-2)), out.getpixel((1, x-2)))
|
|
|
|
for mode in ("L", "RGB"):
|
|
transpose(mode)
|
|
|
|
def test_transpose(self):
|
|
def transpose(mode):
|
|
im = self.hopper[mode]
|
|
out = im.transpose(TRANSPOSE)
|
|
self.assertEqual(out.mode, mode)
|
|
self.assertEqual(out.size, im.size[::-1])
|
|
|
|
x, y = im.size
|
|
self.assertEqual(im.getpixel((1, 1)), out.getpixel((1, 1)))
|
|
self.assertEqual(im.getpixel((x-2, 1)), out.getpixel((1, x-2)))
|
|
self.assertEqual(im.getpixel((1, y-2)), out.getpixel((y-2, 1)))
|
|
self.assertEqual(im.getpixel((x-2, y-2)), out.getpixel((y-2, x-2)))
|
|
|
|
for mode in ("L", "RGB"):
|
|
transpose(mode)
|
|
|
|
def test_roundtrip(self):
|
|
im = self.hopper['L']
|
|
|
|
def transpose(first, second):
|
|
return im.transpose(first).transpose(second)
|
|
|
|
self.assert_image_equal(
|
|
im, transpose(FLIP_LEFT_RIGHT, FLIP_LEFT_RIGHT))
|
|
self.assert_image_equal(
|
|
im, transpose(FLIP_TOP_BOTTOM, FLIP_TOP_BOTTOM))
|
|
self.assert_image_equal(im, transpose(ROTATE_90, ROTATE_270))
|
|
self.assert_image_equal(im, transpose(ROTATE_180, ROTATE_180))
|
|
self.assert_image_equal(
|
|
im.transpose(TRANSPOSE), transpose(ROTATE_90, FLIP_TOP_BOTTOM))
|
|
self.assert_image_equal(
|
|
im.transpose(TRANSPOSE), transpose(ROTATE_270, FLIP_LEFT_RIGHT))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|