System for Automated Geoscientific Analyses (SAGA) is a Geographic Information System software with immense capabilities for geodata processing and analysis. SAGA supports the implementation of new functions with an effective API. Functions are organised as modules in framework independent Module Libraries and can be accessed via SAGA’s Graphical User Interface or various scripting environments (shell scripts, Python, R and so on). SAGA can use these optional dependencies: postgresql, opencv and vigra.