There are a host of plugins available on the Internet. Not all are registered at the GIMP Plugin Registry. Here are a few that have been recommended by users on the GIMP User Mailing List:
- Focus Blur – a sort of depth of field plugin for photographers.
- UFRaw – a utility to read and manipulate raw images from digital cameras.
- refocus – an alternative to Unsharp Mask; uses a technique called FIR Wiener filtering.
- GREYCstoration – a photo restoration plugin
- DBP – Dave’s Batch Processor, for applying photographics filters to a collection of images.
- Deskew – automatically aligns an image so text is vertical; useful for adjusting scanned images.
Recently (March 2006) the PSPI plugin was ported to Linux (it already runs under Windows), allowing at least some Photoshop Plugins to work with the GIMP on both Windows and Linux. I’ve not tried this plugin, so caveat artist. It’s not known at this time if the KPT plugins work with the PSPI plugin, but if you try it please let me know and I’ll update this entry.