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Merge pull request #5606 from radarhere/convert_transparency

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Hugo van Kemenade 2021-08-13 13:18:39 +03:00 committed by GitHub
commit 3d35e5458f
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2 changed files with 10 additions and 6 deletions
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14
Tests/test_image_convert.py
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@ -104,18 +104,22 @@ def test_trns_p(tmp_path):
# ref https://github.com/python-pillow/Pillow/issues/664
def test_trns_p_rgba():
@pytest.mark.parametrize("mode", ("LA", "PA", "RGBA"))
def test_trns_p_transparency(mode):
# Arrange
im = hopper("P")
im.info["transparency"] = 128
# Act
im_rgba = im.convert("RGBA")
converted_im = im.convert(mode)
# Assert
assert "transparency" not in im_rgba.info
# https://github.com/python-pillow/Pillow/issues/2702
assert im_rgba.palette is None
assert "transparency" not in converted_im.info
if mode == "PA":
assert converted_im.palette is not None
else:
# https://github.com/python-pillow/Pillow/issues/2702
assert converted_im.palette is None
def test_trns_l(tmp_path):

2
src/PIL/Image.py
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@ -1007,7 +1007,7 @@ class Image:
trns_im = trns_im.convert("RGB")
trns = trns_im.getpixel((0, 0))
elif self.mode == "P" and mode == "RGBA":
elif self.mode == "P" and mode in ("LA", "PA", "RGBA"):
t = self.info["transparency"]
delete_trns = True