%BEG 'OK0X'SEP-0001.TXT *********************************2011-04-01

%*********************************************************************

/trans_rgb3*_cmyn4*ioF {%BEG Procedure trans_rgb3*_cmyn4*ioF
%assumes input of olv*

o* 0 le {/o* 0.0000 def} if
l* 0 le {/l* 0.0000 def} if
v* 0 le {/v* 0.0000 def} if
o* 1 ge {/o* 1.0000 def} if
l* 1 ge {/l* 1.0000 def} if
v* 1 ge {/v* 1.0000 def} if

/tdel 0 def

v* l* ge l* o* ge and tdel 0 eq and % v* >= l* >= o* equal y* <= m* <= c*
%sector C-V of C-M, C>=M: i*p=0
   {/n*n 1 v* sub def
    /w*w o* def
    /tdel 1 def
   } if % v* >= l* >= o*

v* o* ge o* l* ge and tdel 0 eq and % v* >= o* >= l* equal y* <= c* <= m*
%sector V-M of C-M, M>=C: i*p=1
   {/n*n 1 v* sub def
    /w*w l* def
    /tdel 1 def
   } if % v* >= o* >= l*
   
o* v* ge v* l* ge and tdel 0 eq and % o* >= v* >= l* equal c* <= y* <= m*
%sector M-O of M-Y, M>=Y: i*p=2
   {/n*n 1 o* sub def
    /w*w l* def
    /tdel 1 def
   } if % o* >= v* >= l*
    
o* l* ge l* v* ge and tdel 0 eq and % o* >= l* >= v* equal c* <= m* <= y*
%sector O-Y of M-Y, Y>=M: i*p=3   
   {/n*n 1 o* sub def
    /w*w v* def
    /tdel 1 def
   } if % o* >= l* >= v*

l* o* ge o* v* ge and tdel 0 eq and % l* >= o* >= v* equal m* <= c* <= y*
%sector Y-L of Y-C, Y>=C: i*p=4
   {/n*n 1 l* sub def
    /w*w v* def
    /tdel 1 def
   } if % l* >= o* >= v*

l* v* ge v* o* ge and tdel 0 eq and % l* >= v* >= o* equal m* <= y* <= c*
%sector L-C of Y-C, C>=Y: i*p=5
   {/n*n 1 l* sub def
    /w*w o* def
    /tdel 1 def
   } if % l* >= v* >= o*
   
%achromatic
%W: o*, l*, v* = 1.00
1.0 o* sub abs 0.001 le
1.0 l* sub abs 0.001 le and
1.0 v* sub abs 0.001 le and %W special case
{/n*n 0 def /w*w 1 def %W
} if

%N: o*, l*, v* <= 0.001
o* abs 0.001 le
l* abs 0.001 le and
v* abs 0.001 le and %N special case
{/n*n 1 def /w*w 0 def %N
} if

%Achromatic
o* l* sub abs 0.001 le
l* v* sub abs 0.001 le and %Achromatic special case
{/n*n 1 o* sub def /w*w o* def %grey
} if

/lab*wFa w*w def
/lab*nFa n*n def

/c3*Fa 1 o* sub def
/m3*Fa 1 l* sub def
/y3*Fa 1 v* sub def

/c4*Fa c3*Fa lab*nFa sub def %at least one of cmy will be cero
/m4*Fa m3*Fa lab*nFa sub def
/y4*Fa y3*Fa lab*nFa sub def
/n4*Fa lab*nFa def %cmyn4*

/o4*Fa 1 c4*Fa sub def
/l4*Fa 1 m4*Fa sub def
/v4*Fa 1 y4*Fa sub def
/i4*Fa 1 n4*Fa sub def

} bind def %END Procedure trans_rgb3*_cmyn4*ioF

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%END 'OK0X'SEP-0001.TXT *********************************2011-04-01