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Apply transparency to P images before passing to tkinter.PhotoImage

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This commit is contained in:
Andrew Murray 2022-09-05 11:58:45 +10:00
parent b6348d9b2d
commit ee5de25f87
2 changed files with 8 additions and 0 deletions
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7
Tests/test_imagetk.py
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@ -69,6 +69,13 @@ def test_photoimage():
assert_image_equal(reloaded, im.convert("RGBA")) assert_image_equal(reloaded, im.convert("RGBA"))
def test_photoimage_apply_transparency():
with Image.open("Tests/images/pil123p.png") as im:
im_tk = ImageTk.PhotoImage(im)
reloaded = ImageTk.getimage(im_tk)
assert_image_equal(reloaded, im.convert("RGBA"))
def test_photoimage_blank(): def test_photoimage_blank():
# test a image using mode/size: # test a image using mode/size:
for mode in TK_MODES: for mode in TK_MODES:

1
src/PIL/ImageTk.py
View File

@ -107,6 +107,7 @@ class PhotoImage:
mode = image.mode mode = image.mode
if mode == "P": if mode == "P":
# palette mapped data # palette mapped data
image.apply_transparency()
image.load() image.load()
try: try:
mode = image.palette.mode mode = image.palette.mode