function make_movie_from_jpg_files(num)

framesPerSec=15;
aviobj=avifile('movie.avi','fps',framesPerSec,'COMPRESSION','NONE'); % initialize .avi file object.   

directory='img/';

for i=1:1:num
fileName=strcat(directory,num2str(i),'.jpg');

    imgObj = imread(fileName,'jpeg');
    frameObj = im2frame(imgObj);  
    aviobj = addframe(aviobj,frameObj);
end;
aviobj = close(aviobj);