Spectral ink simulatorSpectral ordered ink/paint soft proofing and separation engine. In the upper left corner we see the substrate, followed by subsequent layers of colorant in the configuration.
Most of the colors references by name are internal presets for spectral measurements - wheras entries with 'rgb ? ? ?' entries indicate synthesized spectrums.
# virtual printer configured with one ink, black illuminant=D65 substrate=white ink1=black
illuminant=D65 substrate=green # green background ink1=black ink2=white ink2.black=white
# simulating charchoal and chalk illuminant=D65 substrate=rgb 1 0.6 0.6 ink1=black ink2=white ink2.black=white
# simulation using reasonable data; # gives a quite small color gamut illuminant=D65 substrate=white ink1=cyan ink2=magenta ink3=yellow ink4=black inklimit=2.5
# same as previous ink configuration # allowing only 150% ink on an pixel. illuminant=D65 substrate=white ink1=cyan ink2=magenta ink3=yellow ink4=black inklimit=2.2
# white paint + CMY print on black # illuminant=D65 substrate=black ink1=white ink1.black=white ink2=cyan ink2.black=cyan ink3=magenta ink3.black=magenta ink4=yellow ink4.black=yellow inklimit=3.0
# using simulated "ideal" inks - giving unnatural # gamut for CMYK illuminant=D65 substrate=white ink1=rgb 0 1 1 ink2=rgb 1 0 1 ink3=rgb 1 1 0 ink4=rgb 0 0 0
# CMYK printing on yellow paper illuminant=D65 substrate=rgb 1 0.6 0.6 ink1=cyan ink2=magenta ink3=yellow ink4=black
# duo-tone printing of green + black on white illuminant=D65 substrate=white ink1=black ink2=green
# duo tone printing with red / blue illuminant=D65 substrate=white ink1=red ink2=blue
# duo tone printing with red and green illuminant=D65 substrate=white ink1=red ink2=green
# printing with red/green/blue inks - # works quite well for colors in this photo illuminant=D65 substrate=white ink1=red ink2=green ink3=blue
# duotone print on top of black illuminant=D65 substrate=black ink1=white ink1.black=white ink2=green debugwidth=48
illuminant=D65 substrate=black ink1=white ink1.black=white ink2=red debugwidth=48
These images represents recent advances in these experiments - the current working incarnation of the software is currently not publicly available. /pippin.