Subject: Re: Alpha-channels ??
Date: Wed, 25 May 1994 18:27:09 -0600 (MDT)
From: Roger Straub <straub@csn.org>

On Wed, 25 May 1994, christian boetker ho/j wrote:

> Hi all Imagineers!
> 
> I'm pretty new at graphics on computers, and I therefore have some questions.
> One is concerning alpha-channels. I have seen the term mentioned often here at
 the IML and
> in conjunction with other graphic packages.
> Could someone give me an explanation of this concept and how to use it?
> 

>From what I understand, the Alpha Channel is sort of like a transparency
mask for images. The picture is stored with an extra 8 bits (256 colors,
usually greyscale) and can be easily overlaid onto a background.




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