Abstract
In this paper, we propose a simple and fast post-processing de-blocking technique to reduce blocking artifacts. The block-based coded image is first decomposed into several subbands. Only the low frequency subband signals are retained and the high frequency subband signals are discarded. The remaining subband signals are then reconstructed to obtain a less blocky image. The ideas are demonstrated by a cosine filter bank and a modulated sine filter bank. The simulation result shows that the proposed algorithm is effective in the reduction of blocking artifacts.
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References
Malvar H. S.: Extended Lapped Transforms: Properties, Applications, and Fast Algorithms. IEEE Transactions on Signal Processing, Vol. 40, No. 11. (1992) 2703–2714.
Sung W. H., Chan Y. H. and Siu W. C.: Subband Adaptive Regularization Method for Removing Blocking Effect. in Proc. ICIP, Vol. 2. (1995) 523–526.
Rabiee H. R. and Kashyap R. L.: Image De-blocking with Wavelet-Based Multiresolution Analysis and Spatially Variant OS Filters. in Proc. ICIP, Vol. 1. (1997) 318–321.
Hsung T. C., Lun P. K. and Siu W. C.: A Deblocking Technique for JPEG Decoded Image Using Wavelet Transform Modulus Maxima Representation. in Proc. ICIP, Vol. 1. (1996) 561–564.
Ling W. K. and Zeng B.: A Novel Method for Blocking Effect Reduction in DCT-Coded Images. in Proc. ISCAS, Vol. 4. (1999) 46–49.
Malvar H. S.: Lapped Transforms for Efficient Transform/ Subband Coding. IEEE Transactions on Acoustics, Speech, and Signal Processing, Vol. 38, No. 6. (1990) 969–978.
Malvar H. S.: Efficient Signal Coding with Hierarchical Lapped Transforms. in Proc. ICASSP, Vol. 3. (1990) 1519–1522.
Malvar H. S. and Staelin D. H.: The LOT: Transform coding without blocking effects. IEEE Transactions on Acoustics, Speech, and Signal processing, Vol. 37. (1989) 553–559.
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© 2001 Springer-Verlag Berlin Heidelberg
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Ling, Wk., Tam, P.K.S. (2001). Simple and Fast Subband De-blocking Technique by Discarding the High Band Signals. In: Tang, Y.Y., Yuen, P.C., Li, Ch., Wickerhauser, V. (eds) Wavelet Analysis and Its Applications. WAA 2001. Lecture Notes in Computer Science, vol 2251. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45333-4_8
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DOI: https://doi.org/10.1007/3-540-45333-4_8
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