Java bindings to cairo
Heterogeneous Image Processing Acceleration (HIPACC) Framework
C/C++ library to add light and intuitive GUI to OpenGL and DX programs
Display image info with a minimum of C code & no external dependencies
A 3D equirectangular panorama viewer, in C/GTK+
Easy to use physics simulation combining ODE with OpenInventor.
Nomad Image Viewer is a gtk and gdkpixbuf based image viewer.