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Article #1783Re: Cheap color sensor
From: Chris Malcolm
Date: Mon, 11 Jan 1993 12:45
Date: Mon, 11 Jan 1993 12:45
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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
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Path: arc1-ca.pugleaf.net!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