• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

Weighted DCT-IF for Image up Scaling

Vol. 13, No. 2, February 27, 2019
10.3837/tiis.2019.02.017, Download Paper (Free):


The design of an efficient scaler to enhance the edge data is one of the most important issues in video signal applications, because the perceptual quality of the processed image is sensitively affected by the degradation of edge data. Various conventional scaling schemes have been proposed to enhance the edge data. In this paper, we propose an efficient scaling algorithm for this purpose. The proposed method is based on the discrete cosine transform-based interpolation filter (DCT-IF) because it outperforms other scaling algorithms in various configurations. The proposed DCT-IF incorporates weighting parameters that are optimized for training data. Simulation results show that the quality of the resized image produced by the proposed DCT-IF is much higher than that of those produced by the conventional schemes, although the proposed DCT-IF is more complex than other conventional scaling algorithms.


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Cite this article

[IEEE Style]
J. Lee, S. Yoon, J. Kim and J. Han, "Weighted DCT-IF for Image up Scaling," KSII Transactions on Internet and Information Systems, vol. 13, no. 2, pp. 790-809, 2019. DOI: 10.3837/tiis.2019.02.017.

[ACM Style]
Jae-Yung Lee, Sung-Jun Yoon, Jae-Gon Kim, and Jong-Ki Han. 2019. Weighted DCT-IF for Image up Scaling. KSII Transactions on Internet and Information Systems, 13, 2, (2019), 790-809. DOI: 10.3837/tiis.2019.02.017.

[BibTeX Style]
@article{tiis:22007, title="Weighted DCT-IF for Image up Scaling", author="Jae-Yung Lee and Sung-Jun Yoon and Jae-Gon Kim and Jong-Ki Han and ", journal="KSII Transactions on Internet and Information Systems", DOI={10.3837/tiis.2019.02.017}, volume={13}, number={2}, year="2019", month={February}, pages={790-809}}