Geodesic Based Ink Separation for Spectral Printing
Bastani, B. and Funt, B., "Geodesic Based Ink Separation for Spectral Printing," Proc. IS&T Sixteenth Color Imaging Conference,
Portland, Nov. 2008.
An ink separation algorithm is introduced for printing with 6
to 9 inks. A spectral gamut mapping algorithm is also introduced
that projects an input reflectance onto the manifold of the printer
spectral gamut space The ink separation, which is finding the best
ink combination to reproduce a given reflectance, is done by
applying an interpolation between printer gamut points
neighboring a projected point pointís geodesic location.
The technique finds the best manifold projection using ISOMAP.
The algorithm searches for the lowest dimensionality that holds the
spectral information accurately. Using this method we were able to
find a good ink combination given an input reflectance for both a
6-ink and 9-ink printer model.
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