Re: Which scanners REALLY provide 36 bit output? HP?

From: Ian Stirling (
Date: Tue Dec 12 2000 - 10:21:16 PST

  • Next message: Mark Temple: "testing BH on copiscan 8080d"

    > Back to scanning - if you need to get all the info that is in a
    > photograph ABOUT THE ORIGINAL SCENE, a three channel scanner is enough,
    > because the original photo process has already reduced it to 3 chans.
    > By using a multispectral scanner, you'll only get more info about the
    > spectral shapes of the pigments (dyes) that make up the photo.

    Assuming that the photo is perfect, yes.
    If you need to determine if something is red, or a reddish stain, then
    you can't do it solely by looking at RGB.

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