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Unified Diff: imageConversion.py

Issue 5195120659922944: Issue 1883 - Convert mode P to LA to work around a PIL bug when extracting the alpha channel (Closed)
Patch Set: Created Jan. 27, 2015, 2:04 p.m.
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Index: imageConversion.py
===================================================================
--- a/imageConversion.py
+++ b/imageConversion.py
@@ -16,17 +16,10 @@
import ImageOps
def get_alpha(image):
- if image.mode in ('RGBA', 'LA'):
- return image.split()[image.getbands().index('A')]
+ if image.mode not in ('RGBA', 'LA'):
+ image = image.convert("LA")
- if image.mode == 'P':
- transparency = image.info.get('transparency')
-
- if transparency is not None:
- table = [255] * 256
- table[transparency] = 0
-
- return image.point(table, 'L')
+ return image.split()[image.getbands().index('A')]
def load_image(path):
image = Image.open(path)
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