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- From: trebor@foretune.co.jp (Robert J Woodhead)
- Subject: Re: TV resolution?
- Message-ID: <1992Nov19.050314.26343@foretune.co.jp>
- Organization: Foretune Co., Ltd.
- References: <Bxn4Jt.K2p@rahul.net> <1992Nov17.113157.12225@waikato.ac.nz> <1992Nov17.171855.1@ualr.edu> <1992Nov18.181633.26950@netcom.com>
- Date: Thu, 19 Nov 1992 05:03:14 GMT
- Lines: 24
-
- kudzu@netcom.com (Michael Sierchio) writes:
- >Bzzt! to all of you. Resolution doesn't mean number of scan lines. It means
- >how many lines can be resolved in the horizontal and vertical directions.
-
- >This is determined by that radial line test pattern of converging black
- >lines on a white board.
-
- >My recollection is hazy, but I believe that the best performance (a good
- >camera connected directly to a monitor) yields about 500 lines of vertical
- >resolution, and 600 lines of horizontal resolution.
-
- Which brings up the question: exactly how is a line of resolution defined?
- Consider an alternating pattern of 640 white and dark lines (320 white,
- 320 dark) that my computer is displaying on a TV set. I look closely and
- can see all of the white and dark lines (they don't merge).
-
- Am I seeing 640 lines of resolution, or only 320? By the above description
- (since it says 500 lines vertical, and there are only 525 scan lines to
- begin with), I'd assume I'm seeing 640, but inquiring minds want to know.
-
- --
- +---------------------------------------------------------------------------+
- | Robert J. Woodhead, Biar Games / AnimEigo, Incs. trebor@foretune.co.jp |
- | AnimEigo US Office Email (for general questions): 72447.37@compuserve.com |
-