Save a video to images

%VIDEO2PIC converts viedo frames into pictures.

%VIDEO2PIC converts viedo frames into pictures.
% This function uses mmreader to read videos. Thus video format supported
% by system can be converted to pictures. Output file name follows the
% format: VideoName_FrameNumber.PicSuffix.
%
% VIDEO2PIC input parameters interactively.
% VIDEO2PIC( VIDEOFILE, OUTPUTPATH, PICFORMAT ) runs as a
% function.
%
% videoFile: full path of video to convert.
% outputPath: pictures will be saved under outputPath/videoname/.
% picFormat: check 'help imwrite'
%
% Shiquan Wang @ CASIA
% [e-mail]
% http://www.cbsr.ia.ac.cn/users/sqwang/
% revised on 2009/10/19