在电视采访中，有时候一些采访对象不愿意抛头露面。这种情况下，被采访者可能会背对摄像镜头；但更通常的做法是，被采访者仍然面对镜头，而在电视节目播出时对采访对象的面部进行马赛克处理。这种马赛克处理，使观众无法看清被采访者的真实面目，从而满足被采访者不愿抛头露面的初衷。作为程序员，你想过如何来实现这种效果处理吗？本文介绍的就是一种实现视频局部区域马赛克处理的简单易行的编程方法。-In a television interview, and sometimes do not want to interview some of the spotlight. Such a case, the interviewer may be away from camera lens　but it is more usual practice is that the interviewer is still facing the camera, and in a television program broadcast on the face interview carried out to deal with mosaics. This mosaic so that the audience was unable to see the true face of the interviewer, to be interviewed in order to meet the original intention of those who do not want to spotlight. As a programmer, you thought about how to achieve this effect to deal with it? In this paper, is a mosaic video local area to deal with the simple method of programming.