MATLAB视频读取转换为图片

% convert .mp4 to jpg picture
input='srcinput.mp4';
v = VideoReader(input);
i = 1;
while 1
    if ~hasFrame(v)
        break;
    end
    frame = readFrame(v);
    temp=strcat('jpg\',num2str(i),'.','jpg');
    imwrite(frame,temp);
    i = i+1;
end
%end