If you want Simple way of making a stop animation you can use mencoder.MEncoder is a free command line video decoding, encoding and filtering tool released under the GNU General Public License. It is a close sibling to MPlayer and can convert all the formats that MPlayer understands into a variety of compressed and uncompressed formats using different codecs.
Install mencoder in Ubuntu
sudo-apt get install mencoder
or click on the following link
browse to your directory with the .jpegs in and use the following command
mencoder "mf://*.jpg" -ovc lavc -fps 04 -o x.avi
mencoder "mf://*.JPG" -vf scale=640:480 -o timelapse.avi -of lavf -ovc lavc -lavcopts vcodec=mjpeg -lavfopts format=avi -fps xx