The Open Foris Geospatial Toolkit (OFGT) contains functionalities for radiometric harmonization, image segmentation and image arithmetic, as well as image statistics, feature extraction and other image processing analysis. The great potential of OFGT is its capacity to deal with large data sets. First of all the processing itself takes a fraction of time than with conventional software. And second, automatized data processing makes applications repeatable, which is of high advantage for many projects.