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Merge pull request #7460 from radarhere/new

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Hugo van Kemenade 2023-10-13 23:45:12 +02:00 committed by GitHub
commit 5666c05bf3
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1 changed files with 13 additions and 11 deletions
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24
src/PIL/Image.py
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@ -933,9 +933,9 @@ class Image:
msg = "illegal conversion" msg = "illegal conversion"
raise ValueError(msg) raise ValueError(msg)
im = self.im.convert_matrix(mode, matrix) im = self.im.convert_matrix(mode, matrix)
new = self._new(im) new_im = self._new(im)
if has_transparency and self.im.bands == 3: if has_transparency and self.im.bands == 3:
transparency = new.info["transparency"] transparency = new_im.info["transparency"]
def convert_transparency(m, v): def convert_transparency(m, v):
v = m[0] * v[0] + m[1] * v[1] + m[2] * v[2] + m[3] * 0.5 v = m[0] * v[0] + m[1] * v[1] + m[2] * v[2] + m[3] * 0.5
@ -948,8 +948,8 @@ class Image:
convert_transparency(matrix[i * 4 : i * 4 + 4], transparency) convert_transparency(matrix[i * 4 : i * 4 + 4], transparency)
for i in range(0, len(transparency)) for i in range(0, len(transparency))
) )
new.info["transparency"] = transparency new_im.info["transparency"] = transparency
return new return new_im
if mode == "P" and self.mode == "RGBA": if mode == "P" and self.mode == "RGBA":
return self.quantize(colors) return self.quantize(colors)
@ -980,7 +980,7 @@ class Image:
else: else:
# get the new transparency color. # get the new transparency color.
# use existing conversions # use existing conversions
trns_im = Image()._new(core.new(self.mode, (1, 1))) trns_im = new(self.mode, (1, 1))
if self.mode == "P": if self.mode == "P":
trns_im.putpalette(self.palette) trns_im.putpalette(self.palette)
if isinstance(t, tuple): if isinstance(t, tuple):
@ -1021,23 +1021,25 @@ class Image:
if mode == "P" and palette == Palette.ADAPTIVE: if mode == "P" and palette == Palette.ADAPTIVE:
im = self.im.quantize(colors) im = self.im.quantize(colors)
new = self._new(im) new_im = self._new(im)
from . import ImagePalette from . import ImagePalette
new.palette = ImagePalette.ImagePalette("RGB", new.im.getpalette("RGB")) new_im.palette = ImagePalette.ImagePalette(
"RGB", new_im.im.getpalette("RGB")
)
if delete_trns: if delete_trns:
# This could possibly happen if we requantize to fewer colors. # This could possibly happen if we requantize to fewer colors.
# The transparency would be totally off in that case. # The transparency would be totally off in that case.
del new.info["transparency"] del new_im.info["transparency"]
if trns is not None: if trns is not None:
try: try:
new.info["transparency"] = new.palette.getcolor(trns, new) new_im.info["transparency"] = new_im.palette.getcolor(trns, new_im)
except Exception: except Exception:
# if we can't make a transparent color, don't leave the old # if we can't make a transparent color, don't leave the old
# transparency hanging around to mess us up. # transparency hanging around to mess us up.
del new.info["transparency"] del new_im.info["transparency"]
warnings.warn("Couldn't allocate palette entry for transparency") warnings.warn("Couldn't allocate palette entry for transparency")
return new return new_im
if "LAB" in (self.mode, mode): if "LAB" in (self.mode, mode):
other_mode = mode if self.mode == "LAB" else self.mode other_mode = mode if self.mode == "LAB" else self.mode