Patent ID: 7864192
Filing Date: 2011-01-04
Classification: G09G

Abstract:
1. A dithering system utilized in image processing, the dithering system comprising: a linear transformer which linearly transforms received M bit input data using a linear function having a predetermined gradient to generate and output M bit transform data where M is a natural number; a dither data generator configured to generate and outputs M−N bit dither data where N is a natural number and N<M; an adder connected to the linear transformer and the dither data generator, the adder configured to add the M bit transform data from the linear transformer and the M−N bit dither data from the dither data generator to generate and output M bit correction data; and a shifter connected to the adder and configured to cut-off the bottom M−N bits of the M bit correction data received from the adder to generate and output N bit output data.