[ptx] faster stitcher

[Pablo d'Angelo]

On Sat, 22 Nov 2003, Ed Halley wrote:

> 
> Pablo, that all sounds awesome, until you got to the part where you
> explained dependencies.  Can you reword it, thinking from the viewpoint
> of "I have Hugin and wxGTK/wxWindows and panotools; what do I need to
> get, install or change to use vigra and the new stitcher?"

The stitcher needs vigra:
http://kogs-www.informatik.uni-hamburg.de/~koethe/vigra/

just download and install it. The fftw support is not needed, so you don't
need to isntall libfftw.

I have used vigra inside hugin before, but it does not depend on the impex
module for loading/saving image files, because I use the wxwindows
functions for it. 

A real stitcher should eventually support 16/32/float/double images etc, for
which I need vigra.

> I'll be happy to test the new stitcher thoroughly; most of my images are
> off-center rectilinear or equirectilinear and have huge black swaths
> that eat up memory and time.

As I wrote, its a first version that I wrote in a few hours today, building
on the code for the preview. Usage:

./stitcher project.pto output_prefix

it can also write out the individual remapped images, by changing
stitcher.cpp:87 to
PTools::stitchPanoramaSimple(pano, pano.getOptions(), dest, basename);

(output is currently hardcoded to png...). well its just the first version.
If you want to change/add features, feel free to do so, like setting the
prefix according to PanoramaOptions and so on :)

Unfortunately I won't have time to polish it by porting more advanced interpolators
from panotools to vigra, a radial luminosity brightness tool and color
correction with a global optimizer. At least not tomorrow :)
And hugin also still has some bugs/glitches.

> And what will you call the new stitcher?  Are there any Norse myths
> about needle-wielders or seamstresses?  ;)

Oh, haven't thought about that yet ;) suggestions welcome. *g*

ciao
  Pablo