"imgSeek
"imgSeek is a photo collection manager and viewer with content-based search and many other features. The query is expressed either as a rough sketch painted by the user or as another image.
"Other key features:
"* Transform images or batches automatically: Place text captions, change brightness, contrast, blur, etc. Apply lossless rotations automatically if jpegtran is available.
* Supported file formats are jpg, gif, bmp, png, xbm, and pnm. If you have ImageMagick installed, imgSeek will also support over 87 image formats."
