#!/bin/sh
./alg "$@" >_out
gnuplot -persist <<EOF
set style data lines
plot "_out" using 1 title "input", \
  "_out" using 2 title "denoise", \
  "_out" using 3 title "common", \
  "_out" using 4 title "diff", \
  "_out" using (50*\$5-200) lt 7 title "up"
EOF