# set terminal png truecolor nocrop font arial 8 size 420,320 # set output 'image.5.png' unset key set view map set style data pm3d set style function pm3d set xtics border out scale 1,0.5 mirror norotate offset character 0, 0, 0 autofreq set ytics border out scale 1,0.5 mirror norotate offset character 0, 0, 0 autofreq set ztics border out scale 1,0.5 nomirror norotate offset character 0, 0, 0 autofreq set cbtics border out scale 1,0.5 mirror norotate offset character 0, 0, 0 autofreq set title "As with 3d color surfaces, a color box may be added to the plot" set xrange [ 10.0000 : 117.000 ] noreverse nowriteback set yrange [ 10.0000 : 117.000 ] noreverse nowriteback set cbrange [ 0.00000 : 255.000 ] noreverse nowriteback set pm3d explicit at b set palette positive nops_allcF maxcolors 0 gamma 1.5 gray splot 'blutux.rgb' binary array=128x128 flipy format='%uchar%uchar%uchar' using ($1+$2+$3)/3 with image