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Computer Buyer 1998 May
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dpcb0598.iso
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Business
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Draw8
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Draw
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duotone.ps
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1997-09-19
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2KB
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49 lines
gsave
/IsColourDevice
/deviceinfo where
{pop deviceinfo /Colors known
{deviceinfo /Colors get exec 1 gt}
{false} ifelse}
{/statusdict where
{pop statusdict /processcolors known
{statusdict /processcolors get exec 1 gt}
{false} ifelse}
{false} ifelse}
ifelse
def
40 dict begin
/CorelImage systemdict /image get def
/CorelSetGray systemdict /setgray get def
/CorelGetGray systemdict /currentgray get def
/CorelSetTransfer systemdict /settransfer get def
/CorelGetTransfer systemdict /currenttransfer get def
/IsLevel2 systemdict /languagelevel known
{languagelevel 2 ge}
{false}
ifelse def
/IsBlank 0 CorelGetTransfer exec 1 CorelGetTransfer exec eq def
/IsNeg IsBlank
{0 CorelGetTransfer exec 0.5 lt}
{0 CorelGetTransfer exec 1 CorelGetTransfer exec gt}
ifelse def
/StackTopFourEqual {4 index eq 8 1 roll
4 index eq 8 1 roll
4 index eq 8 1 roll
4 index eq 8 1 roll
pop pop pop pop and and and} def
IsColourDevice {/SepNum 0 def} {/SepNum 5 def} ifelse
/setcmykcolor where {pop
1 0 0 0 setcmykcolor CorelGetGray 1 exch sub
0 1 0 0 setcmykcolor CorelGetGray 1 exch sub
0 0 1 0 setcmykcolor CorelGetGray 1 exch sub
0 0 0 1 setcmykcolor CorelGetGray 1 exch sub
4 {4 copy} repeat
1 0 0 0 StackTopFourEqual {/SepNum 1 store} if
0 1 0 0 StackTopFourEqual {/SepNum 2 store} if
0 0 1 0 StackTopFourEqual {/SepNum 3 store} if
0 0 0 1 StackTopFourEqual {/SepNum 4 store} if
0 0 0 0 StackTopFourEqual {/SepNum 6 store} if} if
IsBlank {/SepNum 6 store} if
SepNum 0 eq SepNum 5 eq or {/InkNum 0 def} {
/InkNum -1 def