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Image.remap_palette: Tweak to improve typing.

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This commit is contained in:
neiljp (Neil Pilgrim) 2017-08-20 18:39:40 -07:00
parent 72b3e6819d
commit 6f69379fdc
1 changed files with 5 additions and 3 deletions
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8
PIL/Image.py
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@ -1624,16 +1624,18 @@ class Image(object):
if source_palette is None:
if self.mode == "P":
source_palette = self.im.getpalette("RGB")[:768]
real_source_palette = self.im.getpalette("RGB")[:768]
else: # L-mode
source_palette = bytearray(i//3 for i in range(768))
real_source_palette = bytearray(i//3 for i in range(768))
else:
real_source_palette = source_palette
palette_bytes = b""
new_positions = [0]*256
# pick only the used colors from the palette
for i, oldPosition in enumerate(dest_map):
palette_bytes += source_palette[oldPosition*3:oldPosition*3+3]
palette_bytes += real_source_palette[oldPosition*3:oldPosition*3+3]
new_positions[oldPosition] = i
# replace the palette color id of all pixel with the new id