A flexible and hackable Particle Image Velocimetry (PIV) code in Python and Matlab.

• The Python version of the code (Python_Code.py) has been updated frequently. The Matlab version is relatively older. Please use the Python code if you can.
• In some cases, Numba makes the code run much faster (up to 2.2 times). If you don't want to use Numba, comment lines 12 and 15.
• If you want to call the PIV code as a function in your code, please see the contents of "Python_Function" folder in the current repository. There is a sample code ("sample.py") that can show you how to call the function from "piv_lib.py".