[ptx] Display gamma (was:Vignetting correction in nona)

[Kai-Uwe Behrmann]

Wouldnt Display gamma be a toppic to do together with colour management, 
as Douglas Wilkins allready planed?

Beside this, when I load from a newer dcraw (version > 7.0) the images 
come corrected by an internal matrix plus gamma. They look much like 
theyre 8-bit sisters.

regards
Kai-Uwe Behrmann
                                + development for color management 
                                + imaging / panoramas
                                + email: ku.b at gmx.de
                                + http://www.behrmann.name


Am 02.01.06, 18:22 -0000 schrieb Bruno Postle:

> On Mon 02-Jan-2006 at 10:33 +0100, pablo.dangelo at informatik.uni-ulm.de wrote:
> > 
> > Gamma correction prior to the remapping. This is similar to the gamma
> > value supported by PTStitcher.
> 
> When stitching some 16bit images derived from RAW photos, I had real trouble
> picking control points because the images appeared so dark.  Hugin could use a
> gamma-slider purely for GUI display purposes, this would be independent of
> anything that happened within the stitching engine.
> 
> -- 
> Bruno
>