diff --git a/scripts/contrast-test.sh b/scripts/contrast-test.sh
index 85ebc6d..47937d9 100755
--- a/scripts/contrast-test.sh
+++ b/scripts/contrast-test.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+CMDPATH="/usr/local/bin"
+
 GRAB="quux.fimg"
 COS01="cos01.fimg"
 COS010="cos010.fimg"
@@ -11,29 +13,26 @@ f2p ()
 {
 dst=$(basename $1 .fimg).pnm
 echo == converting $1 to $dst
-fimg2pnm  $1 $dst
+${CMDPATH}/fimg2pnm  $1 $dst
 }
 
 # --------- capturer une image
-grabvidseq -v -n 77 -p 0.07 -o ${GRAB}
+${CMDPATH}/grabvidseq -v -u -n 2400 -p 0.04 -o ${GRAB}
 echo ERRCODE $?
 f2p ${GRAB} 
 
-ls -rtl 
-exit
-
-# XXXXXXXXXXXXXXXXXXXXXX
-
-fimgfx -v pow2 $GRAB $POW2
+# ----------- traitements
+${CMDPATH}/fimgfx pow2 $GRAB $POW2
 f2p $POW2
 
-fimgfx -v sqrt $GRAB $SQRT
+${CMDPATH}/fimgfx sqrt $GRAB $SQRT
 f2p $SQRT
 
-fimgfx -v cos01 $GRAB $COS01
+${CMDPATH}/fimgfx cos01 $GRAB $COS01
 f2p $COS01
 
-fimgfx -v cos010 $GRAB $COS010
+${CMDPATH}/fimgfx cos010 $GRAB $COS010
 f2p $COS010
 
-convert -delay 10 *.pnm foo.gif
+echo == Making gif89a
+convert -delay 40 *.pnm foo.gif