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Merge pull request #1745 from hugovk/crop_integers

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Round crop's arguments to nearest integers
This commit is contained in:
wiredfool 2016-03-14 09:44:29 -07:00
commit c3bf1e1c78
2 changed files with 17 additions and 1 deletions
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4
PIL/Image.py
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@ -1951,7 +1951,9 @@ class _ImageCrop(Image):
Image.__init__(self)
x0, y0, x1, y1 = box
# Round to nearest integer, runs int(round(x)) when unpacking
x0, y0, x1, y1 = map(int, map(round, box))
if x1 < x0:
x1 = x0
if y1 < y0:

14
Tests/test_image_crop.py
View File

@ -52,6 +52,20 @@ class TestImageCrop(PillowTestCase):
self.assertEqual(len(im.getdata()), 0)
self.assertRaises(IndexError, lambda: im.getdata()[0])
def test_crop_float(self):
# Check cropping floats are rounded to nearest integer
# https://github.com/python-pillow/Pillow/issues/1744
# Arrange
im = Image.new("RGB", (10, 10))
self.assertEqual(im.size, (10, 10))
# Act
cropped = im.crop((0.9, 1.1, 4.2, 5.8))
# Assert
self.assertEqual(cropped.size, (3, 5))
if __name__ == '__main__':
unittest.main()