An simple PIV processing package in Julia that I wrote for my experimental fluids class.
Note that the package is still under development. Currently there are 3 correlation methods:
- Direct
- Minimum Quadratic Difference (MQD)
- Fast Fourier Transform (FFT)
Additional features include:
- Sub-pixel displacement (a 5 point Gaussian fit)
- A pre-processing contrast filter
- Some vector validation techniques:
- Mean value test
- median test using 8 neigbors
- ratio of correlation peaks.
- Vector replacement
- 8 neighbor average
- Decimation
- Vorticity calculations. Derivatives will be calculated by:
- Central Difference
- 8 point circulation using trapezoidal integration.
- Richardson Extrapolation
- Image set analysis
Features under development:
- Image set averaging