The research and implementation of the method of pretreating the face images based on OpenCV machine visual library

Two processing algorithms of image enhancement in the process of pretreating facial recgonition, median filtering and histogram equalization, are comparative analysed in this thesis. In this thesis the advantages and usage of Open CV machine visual library are analysed, all the algorithms are come true under the VC++6.0 and Matlab development environment and are experimented on the ORL face library. The result proves that the algorithms of processing the face samples in this thesis have positive effect, much more pertinence and are suitable to pretreat the face images. OpenCV machine visual library can be used as a development tool of facial recognition system.