I'm trying out PTGUI and there are a couple of problems:
1. PTGUI won't save as TIFF (only JPEG).
2. Frequently after the stitching process is finished the software fails
to write the image to the disk, generating a "TIFFopen error" and
3. PTGUI routinely generates stitches in which lines which should be
straight end up being curved, as if the image had been taken with a
fish-eye lens. In theory you should be able to straighten the lines by
adding control points (horizontal line, vertical line, line), but in
practice this had no effect in the images I ...