| Tool | Purpose(s) | OpenCV | Generic Filters, ConDensation, Lucas Kanade, optical flow, image analysis, morphology filters |
| Intel's Image Processing Library (IPL) |
Linux port useful for image colorspace conversions, generic image manipulation |
| Matlab | Manual silhouette extraction, vector flow verification of motion history gradients, and plotting trajectory graphs |
| HighGUI | Displaying IplImage images |
| libtiff | TIFF loading/saving/manipulation |
| convert | ImageMagick's convert utilty, for converting to ppms or resizing |
| ppm2fli | converting ppm's to fli |
| ppmtompeg | converting ppm's to mpeg |
| Fast Movie Processor 1.41 | converting fli to avi for web download |