#!/usr/local/bin/gnuplot -persist
# set terminal pngcairo  background "#ffffff" enhanced font "arial,8" fontscale 1.0 size 540, 384 
# set output 'image2.6.png'
unset parametric
set title "Simple extension of a two dimensional image into three dimensions" 
set xrange [ -10.0000 : 137.000 ] noreverse nowriteback
set x2range [ * : * ] noreverse writeback
set yrange [ -10.0000 : 157.000 ] noreverse nowriteback
set y2range [ * : * ] noreverse writeback
set zrange [ * : * ] noreverse writeback
set cbrange [ 0.00000 : 255.000 ] noreverse nowriteback
set rrange [ * : * ] noreverse writeback
set colorbox vertical origin screen 0.9, 0.2 size screen 0.05, 0.6 front  noinvert bdefault
NO_ANIMATION = 1
## Last datafile plotted: "blutux.rgb"
splot 'blutux.rgb' binary array=(128,128) flip=y format='%uchar%uchar%uchar' using ($1+$2+$3)/3 with image