A DITHER METHOD AND DEVICE FOR AN IMAGE DISPLAY

摘要

A dithering method converts an input pixel value of n + k bits into an output pixel value of n bits by truncating k bits. The truncated part of k bits is compared with a pseudo random number. If the value of the k bits is larger than or equal to the value of the pseudo random number, than the output pixel value is made equal to 1 plus the input value of the n bits.