Re: [gentoo-user] merging or fitting images together

[Urs Schutz]

On Wed, 16 May 2012 00:12:25 -0400
Philip Webb <purslow@××××××××.net> wrote:

> 120515 Philip Webb wrote:
> > 120515 Urs Schutz wrote:
> >> I just tried with fotoxx.
> >> This is a semi-manual process, but I liked the
> >> resulting image.
>
> I've installed Fotoxx & it does a very good job !
>
> >> The joint is less visible than on brum-2.jpg.
>
> There's no sign of it on my version :
>   http://www.chass.utoronto.ca/~purslow/test/brum-3.jpg
>
> >> It was easy to do an "unbend" after merging
> >> and therefore the clock and the face on the image
> >> borders stay in the image.
>
> They're on my image, but I can't find out how to turn it
> into a rectangle. NB there are noticeable curves at the
> R-hand edge not in the original: look at the sidewalk
> curve & at the building pediment. Any suggestions ? --
> otherwise, this looks like the tool to use.
>

Transform -> Unbend Image
Play with the vertical values, this is very easy, fast and
intuitive. With brum-3.jpg the best combination was:
vertical linear 5, vertical curved -16, Done
and after that
Transform -> Trim Image or even easier
Transform -> Auto-Trim Image to get rid of the black areas.

In the case of brum-3.jpg apply a little bit of
Retouch -> Gamma Curves, (bend the left part of the curve
a little bit to the bottom, and the right part to the top)
to enhance the image contrast.
Normally the image looses a little bit of sharpness during
the panorama stitching. You can correct this with:
Retouch -> Sharpen Image.

But: If you would like to make an exhibit, then you get
better image quality if you bring the negatives to an old
fashioned photographer for direct enlargement on B&W photo
paper.

Urs