Patent ID: 8345995
Filing Date: 2013-01-01
Classification: G06T,H04N

Abstract:
1. A coding method comprising: (a) dividing pixels of a chrominance component of an input image into blocks having a predetermined size; (b) dividing a current block to be predictively coded into a predetermined number of regions according to a predetermined number of prediction methods and generating prediction values of each pixel in the current block according to the respective prediction methods using a pixel value in an upper reference block adjacent to the current block and a pixel value in a side reference block adjacent to the current block; (c) generating differential values between the prediction values corresponding to the respective prediction methods and a corresponding real pixel value in the current block; and (d) selecting a differential value requiring a least number of bits for coding among the differential values and coding the selected differential value and information on a prediction method corresponding to the selected differential value using a predetermined coding method.