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[DPRG] differential color vision?

Subject: [DPRG] differential color vision?
From: Ralph Tenny rten at metronet.com
Date: Sat Jun 17 08:38:47 CDT 2000

In June '98, you commented about a suggestion of Mark Sims of STB. This
involved two cad sulfide photocells, one with a red filter and the other
with a green filter. Reading photocell outputs with A/D was expected to
give some color recognition capability.

Have you pursued this?

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