Re: Re: associated alpha

Bob Friesenhahn <[email protected]> Sat, 5 Feb 2005 13:41:44 -0600 (CST)
Newsgroups gmane.comp.video.graphicsmagick.core
Message-ID <[email protected]>
On Sat, 5 Feb 2005, Glenn Randers-Pehrson wrote:

> At 01:26 PM 2/5/2005 -0600, Bob Friesenhahn wrote:
>> Unless the alpha channel is used to support rendering or composition,
>> GraphicsMagick doesn't really care what it represents.
>
> If it's being written out as a PNG, then the alpha is supposed to
> be unassociated.  PhotoShop writes associated-alpha PNGs, I have heard.

Wonderful!  Unfortunately, I am not aware of a way to translate from 
associated alpha to unassociated alpha.

Bob
======================================
Bob Friesenhahn
[email protected]
http://www.simplesystems.org/users/bfriesen


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