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- Path: sparky!uunet!pipex!bnr.co.uk!uknet!edcastle!cam
- From: cam@castle.ed.ac.uk (Chris Malcolm)
- Newsgroups: comp.robotics
- Subject: Re: Cheap color sensor
- Message-ID: <30024@castle.ed.ac.uk>
- Date: 11 Jan 93 12:45:33 GMT
- References: <1993Jan8.194916.8558@black.clarku.edu>
- Organization: Edinburgh University
- Lines: 19
-
- In article <1993Jan8.194916.8558@black.clarku.edu> kbasye@black.clarku.edu (Ken Basye) writes:
-
- >I've been wondering lately about how one might build a very simple and
- >cheap color sensor.
-
- >My first thought was to use three photoresistors with R, G and B
- >filters (just cellophane, perhaps).
-
- The human RGB colour system is one of the worst among animal colour
- vision systems. Most animals employ a 4 primary colour system, and one
- that is more evenly spaced. The human system is (in evol terms)
- recently developed and biassed towards fine discrimination of fruit
- kind and status, and your robot is probably not a fruit eater!
- Consider what your robot needs colour for, and give it what it needs.
-
- --
- Chris Malcolm cam@uk.ac.ed.aifh +44 (0)31 650 3085
- Department of Artificial Intelligence, Edinburgh University
- 5 Forrest Hill, Edinburgh, EH1 2QL, UK DoD #205
-