With SHWaveRecon you can reconstruct mutli-contrast images from Hartman and Shack-Harmtan like sensors which generate a 2D pattern of light spots. It allows to reconstruct the transmission, scattering (also called diffraction or dark-field), diferential phase and also the absolute phase by comparing images without and with the tested sample.
For a detailed description of the usage please see the README.txt file which can be opened directly in the software.