diff --git a/px6_convert.sh b/px6_convert.sh
index 323f630..7400e38 100755
--- a/px6_convert.sh
+++ b/px6_convert.sh
@@ -1,10 +1,27 @@
 #! /bin/bash
 
 INPUT=$1
-export OW=$2
-export OH=$3
-W=$4
+OUTPUT=$2
+export OW=$3
+export OH=$4
+W=$5
 if [ "$OW" == "" ]; then OW=0; fi
 if [ "$OH" == "" ]; then OH=0; fi
 
-convert-im6 -resize $W $INPUT txt:- | awk -v ow=$OW -v oh=$OH -F "[,: #]+" 'BEGIN {} NR>1 { print "PX " $1+ow " " $2+oh " " $7 } END {}'
+#initial conversion
+convert-im6 -resize $W $INPUT txt:- | awk -v ow=$OW -v oh=$OH 'match($0, /^(.*),(.*):.*#(.{6})/, arr ){ print "PX " arr[1]+ow " " arr[2]+oh " " arr[3] }' > $OUTPUT
+
+echo optimizing >&2
+
+# edge detection
+#convert-im6 -resize $W $INPUT -negate -edge 6 -negate txt:- | awk -v ow=$OW -v oh=$OH 'match($0, /^(.*),(.*):.*#000000/, arr ){ print "PX " arr[1]+ow " " arr[2]+oh " " }' > /tmp/px6_optimize
+convert-im6 -resize $W $INPUT -edge 6 -negate txt:- | awk -v ow=$OW -v oh=$OH 'match($0, /^(.*),(.*):.*#000000/, arr ){ print "PX " arr[1]+ow " " arr[2]+oh " " }' > /tmp/px6_optimize
+grep -Ff /tmp/px6_optimize $OUTPUT >  ${OUTPUT}.tmp
+grep -Ff /tmp/px6_optimize $OUTPUT >> ${OUTPUT}.tmp
+grep -Ff /tmp/px6_optimize $OUTPUT >> ${OUTPUT}.tmp
+grep -Ff /tmp/px6_optimize $OUTPUT >> ${OUTPUT}.tmp
+cat ${OUTPUT}.tmp >> $OUTPUT
+cat $OUTPUT | shuf > ${OUTPUT}.tmp
+mv ${OUTPUT}.tmp $OUTPUT
+rm /tmp/px6_optimize
+
diff --git a/px6_send.sh b/px6_send.sh
index 2491a73..0b89b7d 100755
--- a/px6_send.sh
+++ b/px6_send.sh
@@ -27,6 +27,7 @@ for i in $(seq 0 $(($PROCS-1))); do
 			) >/dev/null 2>&1
 		done
 	) &
+	sleep 1
 	sleep $(echo "scale=2; $PROCMAXTIME/$PROCS" | bc)
 done
 while true; do sleep 9999999; done