Annotation: Graduation work is devoted to analysis of algorithms and recognition methods in the image in real time, and program implementation for controlling a computer with hand gestures. The purpose is developing software that allows to recognize hand gesture.

The program is implemented through computer vision library OpenCV using the programming language C ++.

Keywords: computer vision, OpenCV, contour analysis, color method, Hausdorff distance.

Summary: Researched principles of reduce the load on web-application through optimization and scaling. There was considered the methods of scaling and methods of their application.

Key words: load reduction, optimization, scale, web-application, host.