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Date: Wed, 28 Mar 2007 18:56:00 +0200 (CEST)
From: Kai-Uwe Behrmann <ku.b@gmx.de>
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To: Andrey Kiselev <dron@ak4719.spb.edu>
Subject: Re: [Tiff] support for 24 bit floats?
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Status:   

Am 28.03.07, 19:09 +0400 schrieb Andrey Kiselev:

> On Wed, Mar 28, 2007 at 04:09:08PM +0200, Kai-Uwe Behrmann wrote:
> > Can the RGBA interface work with the 24-bit float sample type to get a
> > preview?
> 
> No. But it can't work with 32-bit floating point either and even 16-bit
> integer approach is not good. So I am considering RGBAImage API as dumb
> and simple and I do not know how it can be improved without growing into
> complete interactive image viewing application. I think it is a task for
> libraries like gdk-pixbuf to be able to handle complex images sensibly.
> Unfortunately many of these middleware libraries (and gtk-pixbuf is an
> example) do not provide any added value over libtiff's RGBAImage
> functionality, so viewers based on them also have all the limitations of
> RGBAImage.

Well, I understand you completely.

Nevertheless such a middleware library is a realy missed. So I hoped for 
it in RGBA, and, as Bob pointed out, a bit blindly. 

Well, creating such a library took me quite some time and it is still not 
complete. So I can understand why it is not in gtk-pixbuf and osX. At 
least in Panther most of my tiff's are plainly rejected in the Finder, 
the same for KDE and Gnome. Do'nt know about Windows.


kind regards
Kai-Uwe Behrmann
--
development for color management 
www.behrmann.name + www.oyranos.org + www.cinepaint.org

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