A Linear Color Correction Method for Compressed Images and Videos

Kebin AN  Jun SUN  Lei ZHOU  

IEICE TRANSACTIONS on Information and Systems   Vol.E89-D   No.10   pp.2686-2689
Publication Date: 2006/10/01
Online ISSN: 1745-1361
DOI: 10.1093/ietisy/e89-d.10.2686
Print ISSN: 0916-8532
Type of Manuscript: LETTER
Category: Image Processing and Video Processing
color correction,  color space,  MPEG-2,  DCT,  

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Color correction needs to be performed to improve the quality of image/video production. The typical methods realize the color correction mainly in the spatial domain of RGB color space. In this paper, a linear color correction method in JPEG/MPEG-2 compressed domain is proposed. The correction is realized in the DCT domain of YUV color space without full-frame decompression. Experimental results show that the visual quality of the corrected images/videos in the compressed domain is identical to the quality of the images/videos corrected in the uncompressed domain.