Anders Hultman <[EMAIL PROTECTED]> wrote: >Shel Belinkoff: > >>What are "quantization effects?" > >The effect that comes from that you only have distinct levels to play >with, and that subtle changes have to be either on or off. > >Assume 8 bit gray scale. That means 256 distinct shades of gray from >0 (full black) to 255 (full white). > >A change from one shade to the next, say from level #240 to #241 is >very small in percent, but if you go from shade #1 to #2 it's a 100 >percent increase.
Only if you're using a linear scale. -- Mark Roberts Photography and writing www.robertstech.com
