On 2019-08-24 5:09 p.m., Al Kossow wrote: > > > On 8/24/19 10:45 AM, Toby Thain wrote: > >> By the way, what's your position on scanning two-colour printed manuals >> like the DTR ones? Not worth keeping the colour for Bitsavers? > > I'd like to do it for all the multi-color text manuals, but I never came up > with a way > to map to single shades per color from a png > > >
Have you looked at Matt Zucker's noteshrink? Not exactly what you're asking, but still possibly useful for duotone work: https://github.com/mzucker/noteshrink I did some brainstorming with Aaron (OP) recently and I think it would be possible to do a good isolation of the second colour, automatically. Might hack something up because the DATATRIEVE stuff is all printed in 2 inks. (Assuming noteshrink isn't good enough.) --Toby
