Gerhard Fuernkranz wrote:

Btw, I'm actually wondering whether well-known spectral imaging approaches might also work for turning a scanner into a more colorimetric device:

Any comments or objections?

Some comments spring to mind:

        This probably won't work for narrow band scanner sensitivities.

        How do you calibrate your spectral scanner ?

        What maths is needed to extract spectral info from RGB+filter output ?

        Is it all worth it ? For that much effort, you may be better of buying
        a spectrometer, if your aim is to read test patches, rather than
        do a spectral scan of artwork etc.

        There is a bunch of literature about this sort of thing, mostly
        from the art preservation/reproduction folks, who are most active
        in pursuing spectral reproduction.

Graeme Gill.



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