giv, The G(reat|tk|NU) Image Viewer, is a 8-bit to 32-bit and floating point image and vector viewer for gtk+. It is designed especially for scientific vision and computational geometry and has support for drawing vector graphics on top of an image.
Release notes for version 0.9.25 2014-01-10 Fri giv is an image and vector overlay viewer. New features: * Vertical locking. * Better polygon clipping at high zooms. Bug fixes: * Several bug fixes for binary tiff files.