[Image-SIG] Transparent paste - another problem

Florian Höch lists+Image_SIG at hoech.org
Wed Oct 8 17:09:41 CEST 2008


without seeing the original foo and at least some of the baz images, 
it's hard to tell how to achieve what you're looking for. I'd assume you 
want some sort of "adaptive multiplication", where only transparent 
parts are "multiplied over" the existing image and fully opaque parts 
"knock out" everything under it.



Szymon Kosok schrieb:
> Hi,
> I have another problem with PIL and transparent images. I have such code:
>         foo = Image.open("bar.png")
>         for p in w:
>             baz = Image.open(p.element.binary.path)
>             foo.paste(baz, (p.x, p.y), baz)
> And the problem is... every baz (some of them are semi-transparent) is
> transparent over every previous element.
> Maybe I'll show what I want, and what I got:
> http://i36.tinypic.com/2efjlaw.png - this is what I want,
> http://i38.tinypic.com/11glf6t.png - and this what I get.
> Any hints?
> Best regards,
> Szymon
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> Image-SIG maillist  -  Image-SIG at python.org
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