Off-axis digital holography simulation in ImageJ

ImageJ powered with the Numerical Wave Propagation plugin are presented as a useful toolset for the simulation of physical processes of recording and reconstruction of off-axis digital holograms. The capabilities of ImageJ, one of the most complete software for image processing, are extended with plugins to generate planes waves and manipulate complex numbers, allowing the numerical modelling of the complete physical processes involved in off-axis digital holography. The introduced toolset is utilized to illustrate the effect of the angle between the reference and the object waves in the digital holography imaging method.