Am Dienstag, den 29.09.2009, 11:48 +0530 schrieb phanisvara das:
> On Tuesday 29 September 2009 07:06:52 am Phil Labonte wrote:
> >  have looked online on the Gimp site and I am not clear if Gimp
> > supports 16 or 24 or 32 bit images?
> 
> as far as i know, GIMP processes colors with 16 bit precision when "use GEGL" 
> is 
> enabled from the "colors" menu. work is in progress to make it possible to 
> fully 
> support opening & saving of 16 bit (or higher?) images.
> 
Wrong. GEGL uses 32 bit floating point numbers, that gives 128 bit per
coloured pixel (with alpha channel). Using 16 bit integers, the maximum
intensity of a color channel is 0xffff. This may lead to temporarily
color cropping during multi-step operations, even if the final channel
intensity is below 0xffff. By using floating point numbers, no
temorarily cropping will occur.

Joerg

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