[argyllcms] Any use for scanner's bulb's spectral data?

  • From: Michael Darling <darlingm@xxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Mon, 12 Aug 2013 03:48:01 -0400

Out of curiosity, I measured my scanner's bulb's light spectrum (spotread
-a -H), at night, all other sources of light turned off.  It was quite
interesting.  (Closest standard illuminant would be F10, but there's
significant differences.)

Is there anything useful that I can do with this spectral data to improving
the color accuracy of my scans?

I looked at the colprof, spotread, and .SP file documentation, mostly
having to do with the -i switch.  I'm thinking this only has to do with
illumination on the output side, not the input side... But want to make
sure I'm not missing something!

I'm thinking the profiling process effectively makes the bulb's spectral
data irrelevant... By comparing the values given by the scanner to the
spectral data of the target, it basically takes the bulb's spectrum out of
the equation, right?  (Obviously without removing the limitations of the
bulb's spectrum like there's an extremely small amount of 520nm light, so
there's going to be trouble there.)

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