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[filmscanners] RE: Kodak's alternative to Bayer sensor pattern


  • To: lexa@lexa.ru
  • Subject: [filmscanners] RE: Kodak's alternative to Bayer sensor pattern
  • From: "Paul D. DeRocco" <pderocco@ix.netcom.com>
  • Date: Thu, 14 Jun 2007 14:48:23 -0700
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> From: Julian Vrieslander
>
> Not exactly a new idea.  The retina in human eyes uses a
> somewhat similar scheme.  Cone cells are selectively tuned to
> red, green, and blue light. The brain integrates the outputs
> of cones to produce our sensations of color.  Rod cells are
> optimized for low light levels (sensitive to a single
> quantum) and their outputs provide luminance information.
> Mother Nature has been in this business a lot longer than Kodak.
>
> The analogy between retina and the new Kodak sensor is not
> perfect.  The relative concentrations of rods and cones
> varies across the retina.  And if I remember right, rods are
> not truly panchromatic.

Also, I think rods are pretty much saturated in normal daylight conditions,
so the brain ignores them. In night vision, the cones are putting out zero,
so the brain ignores them.

--

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@ix.netcom.com


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