Created
December 8, 2016 12:07
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Separates color-keyed alpha channel from RGB source
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| import PIL | |
| import numpy as np | |
| img = PIL.Image.open('in.bmp') | |
| palette = img.getpalette() | |
| alpha = palette[0:3] | |
| palette[0:3] = (0,0,0) | |
| img.putpalette(palette) | |
| img.save('out.bmp') | |
| palette[3:(256*3)] = (255,255,255)*255 | |
| img.putpalette(palette) | |
| img.save('alpha.bmp') |
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