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Added support for preserving transparency when converting from color to greyscale

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BaBaBags 2011-08-23 10:20:37 -04:00
parent 4a1d1d9715
commit db95e63a63
1 changed files with 9 additions and 1 deletions
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10
imagekit/utils.py
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@ -4,6 +4,14 @@ import tempfile
def img_to_fobj(img, format, **kwargs):
tmp = tempfile.TemporaryFile()
img.convert('RGB').save(tmp, format, **kwargs)
#preserve transparency if the image is in Pallette (P) mode
if img.mode == 'P':
#assert False, img.info
kwargs['transparency'] = 255
else:
img.convert('RGB')
img.save(tmp, format, **kwargs)
tmp.seek(0)
return tmp