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- Xref: sparky comp.graphics:13567 comp.graphics.visualization:1992 comp.multimedia:4019 comp.org.acm:1045 alt.graphics.pixutils:2867 comp.graphics.animation:1531
- Newsgroups: comp.graphics,comp.graphics.visualization,comp.multimedia,comp.org.acm,alt.graphics.pixutils,comp.graphics.animation
- Path: sparky!uunet!seas.gwu.edu!gritz
- From: gritz@seas.gwu.edu (Larry Gritz)
- Subject: Re: SIGGRAPH to do online electronic publication
- Message-ID: <1993Jan8.164918.22223@seas.gwu.edu>
- Keywords: SIGGRAPH, electronic publication, online, experimental
- Sender: news@seas.gwu.edu
- Organization: George Washington University
- References: <1993Jan7.195626.21916@koko.csustan.edu> <1993Jan8.152029.20363@crd.ge.com>
- Date: Fri, 8 Jan 1993 16:49:18 GMT
- Lines: 46
-
- >rsc@altair.csustan.edu (Steve Cunningham) writes:
- >
- >| and images will be provided in tiff format and possibly other formats.
-
-
- In reply, davidsen@crd.ge.com (bill davidsen) writes:
-
- > This is a good example when GIF may be better than JPEG, and might
- >even be the optimal choice for this content.
- >...
- > While GIF is limited to 256 colors,
- >quantization and dithering can provide an acceptable (if not optimal)
- >image form 24 bit color, and would probably be a better compromise.
-
-
- Sorry, but I must very strongly take exception to this.
-
- First of all, I don't know of any serious graphics researchers
- (presumably the audience that Siggraph is catering to) who use GIF.
- TIFF, on the other hand, is fairly standard.
-
- Secondly (and most importantly), as far as anybody interested in this
- type of research is concerned, 256 colors are totally unacceptable, no
- matter how well they are quantized and dithered. Anything less than
- 24 bits isn't worth the paper it's printed on. (How's that for mixing
- of metaphors?)
-
- Using GIF files with 256 colors may be just fine for trading nude
- pictures of Elle MacPherson, but they have no place in graphics
- research. As somebody doing research in rendering and illumination, I
- will say that I don't think I could take very seriously a paper in
- this area which has images quantized to 256 colors. JPEG is equally
- useless, since it is lossy and therefore will be impossible to
- distinguish lossy compression artifacts from rendering artifacts.
-
- Just my opinion.
-
- -- lg
-
- --
- Larry Gritz, gritz@seas.gwu.edu Dept. of EE & CS
- The George Washington University 801 22nd St. NW, Rm. T-624G
- (202) 994-0460 (voice) -0227 (fax) Washington, DC 20052
-
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