Title :
A novel method for blocking effect reduction in DCT-coded images
Author :
Ling, Wing-Kuen ; Zeng, Bing
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, Hong Kong
Abstract :
In this paper, a novel method for blocking effect reduction in DCT coded images is presented. A block image is first transformed into DCT domain, then some of the DCT coefficients are set to zero or multiplied by some weighting coefficients. Intensive simulations show a respectable performance for both one dimensional and two dimensional cases
Keywords :
discrete cosine transforms; image coding; transform coding; DCT-coded images; JPEG image; block image; blocking effect reduction; one dimensional case; step function model; two dimensional case; visual quality; weighting coefficients; zero masking; Adaptive filters; Convergence; Discrete cosine transforms; Filtering; Frequency; Humans; Image coding; Image recognition; Iterative algorithms; Iterative decoding;
Conference_Titel :
Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-5471-0
DOI :
10.1109/ISCAS.1999.779939
