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List:       kde-devel
Subject:    Re: Qt Images and Gamma correction
From:       Thorsten Westheider <thorsten.westheider () teleos-web ! de>
Date:       2000-01-15 17:38:05
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Christian Esken wrote:
> 
> Is there any kind of support for gamma correction in Qt Images?
> 
> For example PNG supports this kind of information.
> 
> But when I simply load the picture, it looks too dark. I have the
> same effect in xv when loading certain PNG's, but Gimp does
> it right.
> 
> Any info is highly appreciated!

I have the same problem since 1.44, here's what the Trolls
told me quite some time ago:

> This is probably not something that can be changed in Qt 1.x series,
> as user who are still using 1.44 are generally happy with their
> existing software.  All I can suggest is that you tweak the gAMA chunk
> in the image, or modify your qpngio.cpp to use different value than
> the hard-coded "2.2".

I'm running Dec 15th's Qt snapshot right now, pictures
semm are way to bright (I've had too dark ones, too).
	
	cu
	  Thorsten
	
-- 
Dipl.-Phys. Thorsten Westheider     / /  (_)__  __ ____  __    
Im Schlingen 15                    / /__/ / _ \/ // /\ \/ /   
32120 Hiddenhausen -- Germany     /____/_/_//_/\_,_/ /_/\_\
                                                     2.2.14
mailto:thorsten.westheider@teleos-web.de

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