AnaPIV is a free, open-source software for PIV analysis of PCX images, written by Holger Nobach.

AnaPIV calculates two-dimensional vector fields from PIV images.
The program implements

• iterative vector field correction
• window sub-pixel shift and deformation
• interrogation area weighting

The program is available pre-compiled for Mac OS X PowerPC or as a 32
bit application for Windows including its source code in Pascal.