Patent ID: 7529413

Claim:
A method for reducing data amount in an image memory system, the system including an image encoder and an image decoder, the image encoder encoding an input image and sending an encoded image through a transmission channel to the image decoder to decode and output, the input image including a plurality of image lines, each having a plurality of pixels, an image column defined by pixels located at same positions on the image lines, the method comprising the steps of: (A) based on a predetermined percentage, omitting one image column from every N image column in left and right portions of the input image, respectively, thereby obtaining an image having a reduced data amount; wherein the omitted image columns are located on edges of an entire image frame displaying the input image, and N is a positive integer greater than 1; (B) sending the image having the reduced data amount to the image encoder to encode and accordingly store an encoded image; (C) transmitting the encoded image to the image decoder through the transmission channel; (D) decoding the encoded image by the image decoder as received, thereby obtaining a decoded image; and (E) performing a pixel insertion on reduced image columns of the decoded image.