In computer science, Orfeo Toolbox (OTB) is a software library for processing images from Earth observation satellites.

The software is released under a free licence; a number of contributors outside CNES are taking part in development and integrating into other projects.

[3] The library was originally targeted at high resolution images acquired by the Orfeo constellation: Pléiades and Cosmo-Skymed, but it also handles other sensors.

These application enable interactive segmentation, orthorectification, classification, image registration, etc...

OTB in also use for the development of the operational ground segment for the VENμS (Vegetation and Environment monitoring on a New Micro Satellite) and the ESA Sentinel-2 missions.