yuv文件的读取方法，用MATLAB编程实现的，运行前要把相应格式文件放同一目录-A way to read yuv file and program in matlab.before run the program put it in the same file.

本程序实现的功能是把yuv文件变为RGB,以便于matlab处理！-The implementation of the program function is to put the yuv file into RGB, in order to deal with matlab