Version 1.9 of the LTI-lib computer vision library has just been released and includes major enhancements. LTI-lib is a C++ library that includes algorithms and data structures useful in image processing, computer vision, object recognition, sign language, and gesture recognition. The library was developed at the Aachen University of Technology for use in robots such as Victoria, Manus, and Tauro. LTI-lib is Free Software licensed under the GNU GPL.