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- From: myers@hpfcso.FC.HP.COM (Bob Myers)
- Date: Fri, 8 Jan 1993 19:32:46 GMT
- Subject: Re: HDTV Question
- Message-ID: <7480162@hpfcso.FC.HP.COM>
- Organization: Hewlett-Packard, Fort Collins, CO, USA
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!sdd.hp.com!hpscit.sc.hp.com!hplextra!hpfcso!myers
- Newsgroups: sci.electronics
- References: <1993Jan8.055618.24902@mtu.edu>
- Lines: 31
-
- > >If HDTV will be digital, what will be the number of available colors for
- > >display?
- >
- > Depends on the format that is decided on.
- >
-
- Yes, and while this hasn't been determined yet, I am expecting at least
- 8 bits/color; some have argued for more, but I'm not sure that we'll get them.
- (Or, for that matter, need them, at least with presently-forseeable display
- technology).
-
- > >Instead of the "infinite" we have with NTSC now, this will have to be reduced,
- > >depending on the digitalization, but what are we talking about numbers-wise?
- >
- > Infinite colors? With NTSC? You have to be joking... the linearity of the
- > chrominance signal is terrible on any NTSC systems. The number of discrete,
- > distinguisable colors is far fewer than those that can be seen by the eye,
- > or even recorded on a good film.
-
- Absotively! Actually, even plain old RGB color, without the nasties introduced
- by NTSC encoding, isn't by any means capable of "infinite" colors. The current
- computer de facto "standard" of 8 bits/color ("24 bit color") is more than
- adequate to meet the capabilities of practically any electronic (i.e., not
- film or hard copy) display device.
-
- Sigh. Looks like another one of those "analog == infinite precision" errors.
-
-
- Bob Myers KC0EW Hewlett-Packard Co. |Opinions expressed here are not
- Systems Technology Div. |those of my employer or any other
- myers@fc.hp.com Fort Collins, Colorado |sentient life-form on this planet.
-