This package provides a tool for urban change detection using curvilinear features extracted synthetic aperture radar (SAR) images, as part of research into detection of earthquake damage in urban areas. It was developed at Surrey Space Centre at the University of Surrey in Guildford, UK. The algorithm used by the tool is described in: Brett, Peter T.B. and Guida, Raffaella. "<em>Geometry-based SAR curvilinear feature selection for damage detection,</em>" Synthetic Aperture Radar, 2012. EUSAR. 9th European Conference on, pages 62-65, 23-26 April 2012.