/usr/share/radiance/printwarp.cal is in radiance-materials 4R0+20110410-1build1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | {
Warp response function for printing to avoid
contrast loss at low end.
9/12/97 GWL
}
PrintPivot: .05; { print pivot point }
OrigPivot: .025; { original pivot point }
map(v) = if( v - OrigPivot,
(v-OrigPivot)*((1-PrintPivot)/(1-OrigPivot)) + PrintPivot,
v*(PrintPivot/OrigPivot) );
ro = map(ri(1));
go = map(gi(1));
bo = map(bi(1));
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