Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!bionet!agate!ucbvax!ucsfcgl!pixar!efo From: efo@pixar.uucp (efo) Newsgroups: comp.graphics Subject: Re: ShowScan quality image bit rate Message-ID: <3116@pixar.UUCP> Date: 8 Feb 89 18:50:19 GMT References: <18071@glacier.STANFORD.EDU> <6652@polya.Stanford.EDU> <146@mlogic.UUCP> Sender: news@pixar.UUCP Reply-To: efo@pixar.uucp (efo) Organization: Pixar -- Marin County, California Lines: 13 In article <146@mlogic.UUCP> bennett@mlogic.UUCP (Bennett Leeds) writes: > Back to the original discussion, if 24 bits per pixel is too much >information for the limited dynamic range of TV, it may not be enough for >film because there are values that film can reproduce that TV technology cannot. >Does anybody have an idea of what the values need to be? As a point of reference, the Pixar Image Computer was designed with the parameters of motion picture film as one of the reference points. It has twelve bits per channel (4 channels), or 48 bits per pixel. This appears to be sufficient for many film applications. There is quite a lot that can be represented on film that cannot be adequately captured by video.