We show that, for the same coefficient entropy, an image compressed using 17 X 17 blocks of wavelet coefficients has at least 1 dB higher PSNR than an image ...
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Oct 22, 2024 · In this paper we show that a significant reduction in these block boundary artifacts can be achieved by choosing odd block sizes given by 2N + 1 ...
A New Method for Reducing Boundary Artifacts in. Block-Based Wavelet Image Compression. J. x. Wei, M. R. Pickering, M. R. Frater and J. F. Arnold. School of ...
Compression of image and sound. Zhejiang University, Zhejiang, 1994. 5. N.C.Kim. Reduction of blocking artefact in block-coded images using wavelet transform.
An alternative approach insists in using the discrete wavelet transform directly but using special filters near the boundary (edge). In our contribution, we ...
The most simple and commonly used methods of reducing the boundary effect are zeropadding , constant-padding, reflection, antisymmetric reflection and ...
Abstract—This paper presents a pre/post-filtering method to reduce the reconstruction errors near block boundaries in wavelet-based image and video ...
blocking and ringing artifacts. In this paper, we propose a noniter- ative, wavelet-based deblocking algorithm to reduce both types of artifacts. The ...
A new approach for real-time reduction of blocking effect
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A novel JPEG-compatible approach is proposed for blocking effect reduction. This approach utilizes the correlation existing in the block boundaries and their ...