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

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2 Author(s)
Zhou Wang ; Dept. of Electron. & Commun. Eng., South China Univ. of Technol., Guangzhou, China ; Dapeng Zhang

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

Published in:

IEEE Transactions on Communications  (Volume:46 ,  Issue: 6 )