On 27 Oct 2004 at 19:18, J. C. O'Connell wrote: > I said I thought visible distinguishable shades was less than 16 bit > (64K shades). > That means I think 16 bits is sufficient, it doesn't mean I think 8 bits > is. Image editng is another issue altogether because of > the precision of the iterated math affects the image quality to a very > visable extent.
OK. 14 bits are required according to Charles Poynton: http://www.poynton.com/notes/colour_and_gamma/GammaFAQ.html#smoothly_shade Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998