python-pillow/Pillow
1
1
Fork 0
mirror of https://github.com/python-pillow/Pillow.git synced 2025-01-26 01:04:29 +03:00
Code Issues Packages Projects Releases Wiki Activity

Remove transparency if it cannot be remapped

Browse Source
This commit is contained in:
Andrew Murray 2022-05-21 17:38:44 +10:00
parent 46a80d144a
commit 99f4623a8d
2 changed files with 19 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
Tests/test_image.py
View File

@ -607,6 +607,20 @@ class TestImage:
with pytest.raises(ValueError):
im.remap_palette(None)
def test_remap_palette_transparency(self):
im = Image.new("P", (1, 2))
im.putpixel((0, 1), 1)
im.info["transparency"] = 0
im_remapped = im.remap_palette([1, 0])
assert im_remapped.info["transparency"] == 1
# Test unused transparency
im.info["transparency"] = 2
im_remapped = im.remap_palette([1, 0])
assert "transparency" not in im_remapped.info
def test__new(self):
im = hopper("RGB")
im_p = hopper("P")

6
src/PIL/Image.py
View File

@ -1935,7 +1935,11 @@ class Image:
m_im.palette = ImagePalette.ImagePalette("RGB", palette=palette_bytes)
if "transparency" in self.info:
m_im.info["transparency"] = new_positions[self.info["transparency"]]
try:
m_im.info["transparency"] = dest_map.index(self.info["transparency"])
except ValueError:
if "transparency" in m_im.info:
del m_im.info["transparency"]
return m_im