how to combine two videos in matlab

clc
close all
clear all
source1='LID1-High Illumination.AVI';
source2='ResultsLID.AVI';

vidobj1=VideoReader(source1);
vidobj2=VideoReader(source2);
frames1=vidobj1.NUmberofframes;
frames2=vidobj2.Numberofframes;

for f1=1:frames1

thisframe1=read(vidobj1,f1);

figure(1);imshow(thisframe1);    

   end

one video is input and second is output result how can I combine these videos to play in one image

[mady rio]

HI DUDE

Answer 1

[Walter Roberson]

for f1 = 1 : min(frames1, frames2)

    thisframe1 = read(vidobj1, f1);
    imshow(thisframe1);
    drawnow();
    thisframe2 = read(vidobj2, f1);
    imshow(thisframe2);
    drawnow();

end