From PanoTools.org Wiki
- Unlike PTStitcher, nona has full source-code availability, this means that it can be used on many more platforms such as OS X, Linux ia_64, linux powerpc, Solaris and IRIX.
- nona doesn't perform expensive transformation calculations for unused areas of output images. For panoramas consisting of many source photos this can speed things up greatly.
- Since PTStitcher development has stalled, nona is a likely base for future developments such as Automatic radial luminance correction (known as Vignetting) and correction of Chromatic aberration.
- Nona supports HDR images
(Note: this is the situation as of April 2005, please correct this page if you know this has changed)
- Automatic color/brightness correction isn't yet supported, though enblend now solves much of this problem.
- Fisheye Projection output hasn't been implemented. You need to use the Panorama Tools Plugins to do the conversion.
- Morph to fit control points are not supported.