SYSTEM FOR ULTRA HIGH-DEFINITION IMAGE USING CHROMA-KEY

摘要

PURPOSE: A chromakey system for a high quality image is provided to make the colors of an HD image uniform by the deviation between the color information of one HD image and the color information of other HD images. CONSTITUTION: An interface unit(110) receives a UHD(Ultra High-Definition) image as raw data corresponding to HD images. A pre-processing unit(120) extracts reference color information for one single color area. The pre-processing unit generates deviation information for each HD image. An encoder/decoder unit(130) codes the raw data by a preset format. The encoder/decoder unit corrects the deviations of each HD image before the coding based on the deviation information.