这段代码可将avi视频中的每一帧画面截取出来,并转存到单独的文件夹中。
clear; clc; % choose a video file [filename, pathname] = uigetfile('*.avi', 'choose a video file', 'video.avi', 'Multiselect', 'on'); fprintf('filename = %s \npathname = %s \n\n', filename, pathname); if ischar(filename) fprintf('choose file success.\n\n'); video = mmreader([pathname filename]); len = video.NumberOfFrames; % get length of the video fprintf('length of video : %d \n\n', len); dir=strcat(pathname,strrep(filename,'.avi',''),'\pic'); mkdir(dir); % create folder for saving picture fn=strrep(filename,'.avi',''); for k = 1 : len - 1 frame = rgb2gray(read(video, k)); imwrite(frame,strcat(dir,'\',fn,'-avi-000',int2str(k),'.bmp'),'bmp'); end end