File list (Check if you may need any files):
snake_gvf_demo
..............\images
..............\......\chest.pgm
..............\......\heart.mat
..............\......\heart.pgm
..............\......\heart2.mat
..............\......\heart3.mat
..............\......\new.pgm
..............\......\room.mat
..............\......\room.pgm
..............\......\room2.mat
..............\......\room3.mat
..............\......\u64.mat
..............\......\U64.pgm
..............\......\u642.mat
..............\sdemo.m
..............\snake
..............\.....\BoundMirrorEnsure.m
..............\.....\BoundMirrorExpand.m
..............\.....\BoundMirrorShrink.m
..............\.....\Contents.m
..............\.....\dt.m
..............\.....\gaussianBlur.m
..............\.....\gaussianMask.m
..............\.....\GGVF.m
..............\.....\GVF.m
..............\.....\imdisp.m
..............\.....\rawread.m
..............\.....\rawwrite.m
..............\.....\snakedeform.m
..............\.....\snakedeform2.m
..............\.....\snakedisp.m
..............\.....\snakeindex.m
..............\.....\snakeinit.m
..............\.....\snakeinterp.m
..............\.....\snakeinterp1.m
..............\.....\xconv2.m
..............\subf
..............\....\caclVF.m
..............\....\CallBackHelpSlider.m
..............\....\closeapl.m
..............\....\gradient2.m
..............\....\iterset.m
..............\....\iterset2.m
..............\....\menu0.m
..............\....\menu1.m
..............\....\menu2.m
..............\....\menu3.m
..............\....\muset.m
..............\....\RadioUPDATE.m
..............\....\sigmaset.m
..............\....\SnakeIter.m
..............\....\snakeset.m
..............\....\WriteHelp.m