Pearson, Mark (Capita Symonds) wrote:
Hi All,
Does anyone know if/how I can take a grayscale JPG external figure and assign it to a spot colour channel.
The Color Separation manual gives the following example:
\externalfigure[graphic][split=c]
for assigning such an image to the Cyan channel but I want to say something like:
\definecolor [Spot1] [c=1,m=.05,y=0,k=.47,e=PANTONE 308 CV]
\definecolor [Spot2] [c=.69,m=.07,y=0,k=0,e=PANTONE 298 CV] . .
\externalfigure[graphic][split=Spot1]
Is this possible?
this non trivial feature is magically present -) \setuplayout[header=0pt,footer=0pt,width=middle,height=middle,backspace=1cm,topspace=1cm] \setupcolors[state=start] \startbuffer \definecolor [blue] [c=1,m=.38,y=0,k=.64] \definecolor [yellow] [c=0,m=.28,y=1,k=.06] \definecolor [blue-100] [blue] [p=1] \definecolor [yellow-100] [yellow] [p=1] \definemultitonecolor [combicolor] [blue=.12,yellow=.28] [c=.1,m=.1,y=.3,k=.1] \definemultitonecolor [combicolor-b] [blue=1] [c=1,m=.38,y=0,k=.64] % force multitone \definemultitonecolor [combicolor-y] [yellow=1] [c=0,m=.28,y=1,k=.06] % force multitone \useexternalfigure[demo-a][mill.png] [object=no,width=.2\textwidth] \useexternalfigure[demo-b][hacker-bw.jpg][object=no,width=.2\textwidth] \startbaselinecorrection \startcombination[4*1] {\externalfigure[demo-a]} {no color} {\externalfigure[demo-a][color=combicolor]} {indexed duotone} {\externalfigure[demo-a][color=combicolor-b]} {spot color} {\externalfigure[demo-a][color=combicolor-y]} {spot color} \stopcombination \stopbaselinecorrection \startbaselinecorrection \startcombination[4*1] {\externalfigure[demo-b]} {no color} {\externalfigure[demo-b][color=combicolor]} {indexed duotone} {\externalfigure[demo-b][color=combicolor-b]} {spot color} {\externalfigure[demo-b][color=combicolor-y]} {spot color} \stopcombination \stopbaselinecorrection \startbaselinecorrection \startcombination[4*1] {\externalfigure[demo-a]} {no color} {\externalfigure[demo-a][color=combicolor]} {indexed duotone} {\externalfigure[demo-a][color=blue-100]} {spot color} {\externalfigure[demo-a][color=yellow-100]} {spot color} \stopcombination \stopbaselinecorrection \startbaselinecorrection \startcombination[4*1] {\externalfigure[demo-b]} {no color} {\externalfigure[demo-b][color=combicolor]} {indexed duotone} {\externalfigure[demo-b][color=blue-100]} {spot color} {\externalfigure[demo-b][color=yellow-100]} {spot color} \stopcombination \stopbaselinecorrection \stopbuffer \getbuffer \typebuffer \stoptext