matlab将视频转化为图片

clc; clear all; close all;

filename = 'p15.avi';

mov=aviread(filename);                      %读入

fnum=size(mov,2);                           %读取视频的祯数，mov为1*temp

for i=1:fnum

  strtemp=strcat('picture\',int2str(i),'.','jpg');     %将每祯转成jpg的图片
  imwrite(mov(i).cdata(:,:,:),strtemp);

end
a=imread('picture\200.jpg');   %读出第200帧的图片
imshow(a)