Bob McElrath wrote:
I use the following sequence of commands using python's Imaging library:
im = Image.open(os.path.join(workingDir, imname))
im2 = Image.new('RGBA', (im.size[0], im.size[1]), (255,255,255))
im2.paste(im, (0, 0))
To explicitly create an alpha channel I use:
alpha = ImageChops.invert(im.convert('L'))
im = im.putalpha(alpha)
This creates a PNG with a proper alpha channel. I would VERY much like
it if dvipng did this for me. I would love it if you could hack it in
to dvipng.
Unless I am mistaken, the CVS version of dvipng does create a
proper-alpha PNG if you use '-bg Transparent' (capital T). This is to be
released very soon as dvipng-1.6. Please try it out, I'd like to remove
any remaining flaws.
/J�
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