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- Xref: sparky comp.graphics:13683 alt.graphics.pixutils:2897
- Newsgroups: comp.graphics,alt.graphics.pixutils
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!darwin.sura.net!Sirius.dfn.de!hpux.rz.uni-jena.de!pfk
- From: pfk@rz.uni-jena.de (Frank Klemm)
- Subject: Re: Your one stop GRAPHICS shop!
- Message-ID: <1993Jan12.164406.9613@rz.uni-jena.de>
- Sender: news@rz.uni-jena.de (The News)
- Nntp-Posting-Host: cnve.rz.uni-jena.de
- Reply-To: pfk@rz.uni-jena.de (Frank Klemm)
- Organization: University Jena, Germany
- References: <1993Jan6.150118.24767@a.cs.okstate.edu> <1ifdfaINNim7@hpscit.sc.hp.com> <1ij6taINN8rf@gvgspd.gvg.tek.com> <9301084434@genesis.nred.ma.us>
- Date: Tue, 12 Jan 1993 16:44:06 GMT
- Lines: 37
-
-
- In article <9301084434@genesis.nred.ma.us>, abh@genesis.nred.ma.us (Andrew Hudson) writes:
- |> In article <1ij6taINN8rf@gvgspd.gvg.tek.com> markg@gvgdsd.GVG.TEK.COM (Mark Gydesen) writes:
- |> >In article <1ifdfaINNim7@hpscit.sc.hp.com> klui@corp.hp.com (Kenneth K.F. Lui) writes:
- |> >>if full-color display hardware is available. People won't have
- |> >>8-bit video forever, and I see the trend going towards 24-/32-bit
- |> >>video in the near future. The trend is JPEG; GIF will die soon
- |> >
- |> >There is no need to go beyond 24 bit color, unless you want to store IR
- |> >or UV data as well as visible light. The human eye can only distinguish
- |> >up to 24 bits of color information.
- |> >
- |> >But then again, one never knows... for 3D images, or heat sensitive
- |> >images etc... beyond 24 might become practical, ... sorry for the
- |> >interruption.
- |> >
- |> >/------------- Mark Gydesen ---------------+--- Grass Valley Group ---\
- |>
- |> Having worked on a project which samples at 48-bits (16-bit CCD
- |> * 3 planes) and then quantizes down to 24-bit I can say that
- |> the human eye CAN and does distinguish color information
- |> at higher than 24-bit/pixel. This information is especially
- |> noticeable in highlights and shading, i.e. dynamic range.
- |>
- |> When we get tired of those ugly 24-bit images we can get started
- |> on 36 and 48-bit images!
- |>
- |> - Andrew Hudson
- |> North Coast Software
- |>
- Yes you are right. I use the simple dither algorithm to reduce raytraced
- pictures (double) down to 8 bit per plane. The border of the human eye
- is between 9 and 10 bit depending on the quality of the display. Note that
- the RGB color room can't display all visible colors. I have written an article
- about this problem and problem of color conversation (loseless). But in German.
-
- Frank
-