Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!bloom-beacon!eru!luth!sunic!tut!nn86302 From: nn86302@tut.fi (Neuvo Niilo Anselmi) Newsgroups: comp.graphics Subject: Re: VGA Colors Message-ID: <2499@tutor.tut.fi> Date: 13 Nov 89 21:59:58 GMT References: <824@uwm.edu> <391@ucsvc.ucs.unimelb.edu.au> Reply-To: nn86302@tutor.UUCP (Neuvo Niilo Anselmi) Organization: Tampere University of Technology, Finland Lines: 19 In article <391@ucsvc.ucs.unimelb.edu.au> U5569462@ucsvc.ucs.unimelb.edu.au (DAVID CLUNIE) writes: > >Which brings me to the point that I have read somewhere recently (can't >remember where) that the human eye CAN'T distinguish any more than 64 different >shades of grey. Is this so ? Do people beleive it ? > Nope. Nope. I'm not 100% certain about grey scales, but with other colors I can see the difference. Try drawing two squares (on a VGA(Ah forbidden word)) which are colored with two different colors very close(like colors (50,0,0) and (49,0,0)) to each other and you should be able to see a 'line' in the junction of the boxes. -- NN NN NN NN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNN N NN N NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNN N NN N NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNN NN NN NN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN