The program â??Claxaâ?? is intended for tracking an object in a video footage, constructing the mask of the object, and subsequent extraction of the object. Tracking an object with the aim to extract it means precise detection of its boundaries on a pixel level. In this relation â??Claxaâ?? admits much more alive and natural movements of the mask, even more believable than manual construction of the mask using Bezier-spline in Adobe After Effects (AE).