Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!vsi1!teraida!zehntel!donw From: donw@zehntel.zehntel.com (Don White) Newsgroups: comp.sys.amiga Subject: Re: Neptune Voyager Pix directly viewable on Amiga Message-ID: <1349@zehntel.UUCP> Date: 8 Sep 89 23:57:40 GMT References: <21728@cup.portal.com> <2497@pur-phy> Sender: usenet@zehntel.UUCP Reply-To: donw@zehntel.UUCP (Don White) Organization: Zehntel, Inc. Walnut Creek, CA Lines: 21 In article portuesi@tweezers.esd.sgi.com (Michael Portuesi) writes: >In article <2497@pur-phy> murphy@pur-phy (William J. Murphy) writes: > Although HAM will sacrifice some resolution, > it will allow more gray scale approximations. >No, it won't. The Amiga has four bits of color resolution each for R, Yes, it will. (in a way). It will only display 16 PERFECTLY BALANCED greys. But, (and this is a big but), the human perception recognizes lots of almost greys as grey. When a source picture has more grey levels than the amiga, off greys are an acceptable substitute for MORE greys. Of course the purists will complain that information is being added. But, for the most part, this isn't true. The grey tone may be wrong, but the fact that a different grey tone should be there is preserved. (Sort of a non-euclidean value for the amount of data maintained.) (Just a leetle fractal joke. Yuk Yuk. ) Don White PO Box 271177 Concord, CA. 94527-1177 zehntel!donw