[ptx] [Fwd: panoramic pictures color adjustments]

[Pablo d'Angelo]

Hi all,

Phillipe Thomin wrote:
> Dear Pablo,
> 
> I use hugin for some month, and I find it very comfortable compared to 
> hand-made script editing for Dersch's Panorama Tools.
> 
> I am using an amd64 computer,so I do not longer use the old 32 bits 
> Panorama Tools library, so I loss the color correction capabilities it 
> offered.
> 
> This is why I wrote a small utility to do color adjustements. I followed 
> the ideas exposed by H. Dersch in his article at 
> www.path.unimelb.edu.au/~dersch/cbcorrect/cb.html. The program is very 
> raw, but it may be useful to you and the open software panorama 
> pictures community. It take two pictures,  and produce a third one that 
> is a corrected version of the second.
> 
> I joined the source code. I developped it on a Linux testbed ; I do not 
> try to compile it on another environnement. It should be compiled with 
> libtiff4. Tell me if you find it interesting.

I have added this utility to the hugin CVS, it can be found under
src/tools/color_correct_tiff

It'll be interesting to see how the color correction in PTmender compares to
this, because they are based on different algorithms. color_correct_tiff
uses a linear gray value transformation, while PTStitcher (and hopefully
soon PTmender) use a graduation curve, which should be more accurate.

ciao
  Pablo