This is a script which uses the convert command from ImageMagick as well as mencoder of MPlayer to morph and create a video from several images. It is mostly usefull when doing morphs of the same subject in different conditions.

#!/bin/bash

fileglob=$1
newSize="1200x800"
resizeQuality=85
outputForm='png'
counterFormat='%05d'
tmpPrefix='foo'
outputPrefix='output'
fps=24
outputVideoFilename='output'
CNT=0

if [ "x${fileglob}" == "x" ]
then
    echo "Missing filemask parameter"
    exit
fi

for currentImage in ${fileglob}
do
    j=`printf "${counterFormat}" ${CNT}`

    if [ "x${previousImage}" != "x" ]
    then
        echo "Morphing ${previousImage} -> ${currentImage} (${tmpPrefix}-${j}-%${counterFormat}.${outputForm})"
        convert -resize ${newSize} -quality ${resizeQuality} -depth 8 ${previousImage} ${currentImage} -morph 180 ${tmpPrefix}-
${j}-${counterFormat}.${outputForm}
    else
        echo "previousImage is not defined"
    fi

    CNT=$((${CNT}+1))
    previousImage=${currentImage}
done

echo "Renaming all frames from ${tmpPrefix}-*.${outputForm} -> ${outputPrefix}-XXXXX.${outputForm}"
CNT=1

for i in ${tmpPrefix}-0*.${outputForm}
do
    j=`printf "${counterFormat}" ${CNT}`
    mv -i "${i}" ${outputPrefix}-${j}.${outputForm}
    CNT=$(($CNT+1))
done

echo "Encoding files"

mencoder "mf://${outputPrefix}*.${outputForm}" -mf fps=25 -o ${outputVideoFilename}.avi -ovc lavc -lavcopts vcodec=mpeg4