Currently I'm working with image processing for digital holography applications, particularly with application in digital lens-less holographic microscopy. We already have developed a scientific library for numerical diffraction with the ability to perform GPU calculations. Also, we have developed 2 imagej plugins for image processing in the field of numerical diffraction.
JDiffraction: https://unal-optodigital.github.io/JDiffraction/
NumericalPropagation: https://unal-optodigital.github.io/NumericalPropagation/
DLHM: https://unal-optodigital.github.io/DLHM/