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# Test of gamma correction for gray palettes
set palette gray
set view map
unset colorbox
set style function pm3d
set cbrange [-10:10]
set xrange [-10:10]
set yrange [*:*]
unset ztics
unset ytics
unset xtics
set samples 101
set isosamples 2
set multiplot layout 4, 1
set palette gamma 0.75
set title "gamma = 0.75"
splot x
set palette gamma 1.0
set title "gamma = 1.0"
splot x
set palette gamma 1.5
set title "gamma = 1.5 (default)"
splot x
set xtics 2 offset 0, -1
set palette gamma 2.0
set title "gamma = 2.0"
splot x
unset multiplot
pause -1 "Hit return to continue"
reset
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