Blender - Blender is the open source, cross platform suite of tools for 3D creation.
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
Autodesk 3DS Max - 3ds Max is software for 3D modeling, animation, rendering, and visualization. Create stunning game enrivonments, design visualizations, and virtual reality experiences.
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
ZBrush - ZBrush is a digital sculpting and painting software solution.
Ralpha Image Resizer - High-speed image batch conversion tool