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April 2009

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2009.04.27 19:49 "Question regarding unassociated alpha", by Amir Ebrahimi
2009.04.27 20:00 "Re: Question regarding unassociated alpha", by Chris Cox
2009.04.27 20:03 "Re: Question regarding unassociated alpha", by Amir Ebrahimi
2009.04.27 20:07 "Re: Question regarding unassociated alpha", by Chris Cox
2009.04.27 20:26 "Re: Question regarding unassociated alpha", by Edward Lam
2009.04.27 20:28 "Re: Question regarding unassociated alpha", by Edward Lam
2009.04.27 20:32 "Re: Question regarding unassociated alpha", by Amir Ebrahimi
2009.04.27 20:45 "Re: Question regarding unassociated alpha", by Edward Lam
2009.04.27 20:49 "Re: Question regarding unassociated alpha", by Edward Lam
2009.04.27 20:54 "Re: Question regarding unassociated alpha", by Amir Ebrahimi
2009.04.27 21:22 "Re: Question regarding unassociated alpha", by Bob Friesenhahn
2009.04.27 21:14 "Re: Question regarding unassociated alpha", by Daniel Mccoy
2009.04.27 21:33 "Re: Question regarding unassociated alpha", by Amir Ebrahimi
2009.04.28 20:37 "Re: Question regarding unassociated alpha", by Chris Cox
2009.04.28 22:12 "Re: Question regarding unassociated alpha", by Daniel Mccoy
2009.04.29 03:37 "Re: Question regarding unassociated alpha", by Bob Friesenhahn

2009.04.27 21:22 "Re: Question regarding unassociated alpha", by Bob Friesenhahn

On Mon, 27 Apr 2009, Amir Ebrahimi wrote:
>
> Okay, so maybe a conditional define or read option is due?

In order to have complete control, you should use the lower-level 
interfaces.  The loss of control over application of alpha is just 
getting started with the list of what you are losing by using the RGBA 
"dummy" interface.  The lower-level interfaces do take more work.

For more TIFF sophistication without interfacing with libtiff 
directly, you could use GraphicsMagick rather than FreeImage.

Bob
--
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/