A novel approach for reduction of blocking effects in low-bit-rate image compression

被引:5
作者
Wang, Z [1 ]
Zhang, DP
机构
[1] S China Univ Technol, Dept Elect & Commun Engn, Guangzhou, Peoples R China
[2] City Univ Hong Kong, Dept Comp Sci, Kowloon, Hong Kong
关键词
blocking effect; image coding; image enhancement;
D O I
10.1109/26.681401
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this letter we propose a new approach for removing blocking artifacts in reconstructed block-encoded images, The key of the approach is using piecewise similarity within different parts of the image as a priori to give reasonable modifications to the block boundary pixels, This makes our approach different from traditional ones, which are often developed by applying some kinds of smoothing constraints on local regions. Experimental results show that our approach well achieves enhanced decoding for JPEG-decoded images both objectively and subjectively.
引用
收藏
页码:732 / 734
页数:3
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