# set terminal png truecolor nocrop font arial 8 size 420,320 # set output 'image.15.png' set title "Simple extension of a two dimensional image into three dimensions" set xrange [ -10.0000 : 137.000 ] noreverse nowriteback set yrange [ -10.0000 : 157.000 ] noreverse nowriteback set cbrange [ 0.00000 : 255.000 ] noreverse nowriteback splot 'blutux.rgb' binary array=128x128 flip=y format='%uchar%uchar%uchar' using ($1+$2+$3)/3 with image