IcoFX - IcoFX is an all-in-one solution for icon creation, extraction and editing.
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
JDraw - Open Source SF.net
Batch Image Resizer - Resize, crop, shrink, flip, exif-rotate, convert, enhance, process multiple pictures and photos with professional software! 120+ Actions, 30+ Image Formats
IconsExtract - Extract icons and cursors stored in EXE, DLL, OCX, CPL files
Phatch - Phatch = Photo & Batch!