Method and system for color temperature conversion of compressed video image

摘要

A system to estimate and change a color temperature of a compressed video image and change includes a color temperature estimation unit to receive a video image compressed using block-based discrete cosine transformation, generate a discrete cosine (DC) video image corresponding to the compressed video image, and estimates the color temperature of the compressed video image using the DC video image; a decoder to decode the compressed video image to generate an original video image; and a color temperature change unit to determine the estimated color temperature of the compressed video image or a color temperature of the decoded original video image as an application color temperature according to whether the compressed video image is a moving video image, and changes the color temperature of the decoded original video image in accordance with the application color temperature and a color temperature preferred by a user.