[time-nuts] Scanning darkly

WB6BNQ wb6bnq at cox.net
Sun May 13 20:37:16 EDT 2007

Hi Bill,

Silly question !  Are you using color mode to scan or the grey scale
mode (if there is one) ?

I use an inexpensive Canon scanner in the color mode and get reasonable
grey scale with the default settings, whatever they are.

Just a thought,


Bill Hawkins wrote:

> Having too much trouble scanning a fifties manual's photographs.
> The photos of chassis parts are grayscale, of course. No color
> copiers in those days, at least, not for most manuals.
> Epson 3170 and Smart Panel aren't smart enough. HP 3970 understands
> "descreen" to get rid of Moiré herringbone, but can't get size or
> brightness right. Ten hours of messing with trying to guess where
> the programmer put things or wants me to do is enough.
> Can anyone provide enlightenment on scanning grayscale accurately?
> Bill Hawkins
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