On 3/18/2019 7:45 PM, Henning Hraban Ramm wrote:
\externalfigure has a "color" parameter. It used to be possible to colorize greyscale pictures with that, but it doesn’t work any more:
%%% \setupcolors[state=start] \setupexternalfigures[ location={local,global,default}, ]
\starttext
\externalfigure[img/minidodo_g][width=.3\textwidth,color=red] % greyscale \externalfigure[img/minidodo_b][width=.3\textwidth,color=green] % bitmap \externalfigure[cow][width=.3\textwidth,color=blue] % vector
\stoptext
from one of the manuals ... \starttext \definecolor [my-blue] [c=1,m=.38,y=0,k=.64] % pms 2965 uncoated m \definecolor [my-yellow] [c=0,m=.28,y=1,k=.06] % pms 124 uncoated m \definespotcolor [my-blue-100] [my-blue] [p=1] \definespotcolor [my-yellow-100] [my-yellow] [p=1] \definespotcolor [my-blue-50] [my-blue] [p=.5] \definespotcolor [my-yellow-50] [my-yellow] [p=.5] \definemultitonecolor [my-mix] [my-blue=.12,my-yellow=.28] [c=.1,m=.1,y=.3,k=.1] \starttabulate[|T||] \NC my-blue \NC \blackrule[color=my-blue, width=.6\textwidth,height=5mm] \NC \NR \NC my-blue-50 \NC \blackrule[color=my-blue-50, width=.6\textwidth,height=5mm] \NC \NR \NC my-blue-100 \NC \blackrule[color=my-blue-100, width=.6\textwidth,height=5mm] \NC \NR \NC my-yellow \NC \blackrule[color=my-yellow, width=.6\textwidth,height=5mm] \NC \NR \NC my-yellow-50 \NC \blackrule[color=my-yellow-50, width=.6\textwidth,height=5mm] \NC \NR \NC my-yellow-100 \NC \blackrule[color=my-yellow-100,width=.6\textwidth,height=5mm] \NC \NR \NC my-mix \NC \blackrule[color=my-mix, width=.6\textwidth,height=5mm] \NC \NR \stoptabulate \useexternalfigure[demofig][mill.png][object=no,width=.2\textwidth] \startcombination[4*1] {\externalfigure[demofig]} {no color} {\externalfigure[demofig][color=my-mix]} {indexed duotone} {\externalfigure[demofig][color=my-blue-100]} {spot color} {\externalfigure[demofig][color=my-yellow-100]} {spot color} \stopcombination \stoptext ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------