A METHOD AND APPARATUS FOR READING FILM GRAIN PATTERNS IN A RASTER ORDER IN FILM GRAIN SIMULATION

摘要

The present invention provides a method and apparatus for reading film grainpatterns in a raster order in film grain simulation including establishing apseudo-random starting position, repeating the pseudo-random starting positionfor each line of a group of film grain blocks, and using a different pseudo-random starting position for each display line of a next group of film grainblocks. In various embodiments of the present invention, the different pseudo-random starting positions are triggered by resetting at least one seed valueof a pseudo-random number generator implemented to determine said pseudo-random starting positions.