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Journal of Electronic Imaging

Modified edge-directed interpolation for images
Author(s): Wing-Shan Tam; Chi-Wah Kok; Wan-Chi Siu
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Paper Abstract

We present a modification of the new edge-directed interpolation method that eliminates the prediction error accumulation problem by adopting a modified training window structure, and extending the covariance matching into multiple directions to suppress the covariance mismatch problem. Simulation results show that the proposed method achieves remarkable subjective performance in preserving the edge smoothness and sharpness among other methods in the literaturé. It also demonstrates consistent objective performance among a variety of images.

Paper Details

Date Published: 1 January 2010
PDF: 20 pages
J. Electron. Imag. 19(1) 013011 doi: 10.1117/1.3358372
Published in: Journal of Electronic Imaging Volume 19, Issue 1
Show Author Affiliations
Wing-Shan Tam, City Univ. of Hong Kong (Hong Kong, China)
Chi-Wah Kok, The Hong Kong Polytechnic Univ. (Hong Kong, China)
Wan-Chi Siu, The Hong Kong Polytechnic Univ. (Hong Kong, China)

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