CCV - CCV is a open source/cross-platform solution for blob tracking with computer vision.
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
PCV - PCV is an open source Python module for computer vision.
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
Sirv - Dynamic image processing, hosting and rich-media for retailers and eCommerce.
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats