Re: Re: associated alpha
Bob Friesenhahn <[email protected]> Tue, 8 Feb 2005 21:11:03 -0600 (CST)
| Newsgroups | gmane.comp.video.graphicsmagick.core |
|---|---|
| Message-ID | <[email protected]> |
I have been experimenting with Photoshop. If the TIFF image is marked with associated alpha, then Photoshop shows it with transparency, but without indicating an extra channel. If the TIFF image is marked with unassociated alpha, then Photoshop includes an extra channel called "Alpha 1" and does not show the image with transparency. I am not enough of a Photoshop expert to know how to use an "Alpha 1" channel to create an image that Photoshop considers to be transparent. Unfortunately, simply marking the alpha channel output by GraphicsMagick as being associated alpha does not due the trick since it is not associated alpha so the image is not rendered correctly. Bob ====================================== Bob Friesenhahn [email protected] http://www.simplesystems.org/users/bfriesen ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click