vidéogravure
$ mplayer -tv driver=v4l2:fps=15 -vo jpeg tv:// <br />$ for file in *.jpg; do \ <br /> convert $file -contrast-stretch 0x50% -negate -edge 3 -negate -normalize -threshold 50% \ <br /> -despeckle -despeckle -blur 0x1 $file_edge.pgm; \ <br /> potrace $file_edge.pgm -s -o $file_edge.svg; \ <br /> convert $file_edge.svg $file_edge.jpg; \ <br />done <br />$ ffmpeg -i %08d.jpg_edge.jpg -vcodec mpeg4 edge.avi <br />$ rm *.jpg *.pgm *.svg