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http://dx.doi.org/10.9708/jksci.2012.17.2.059

Quality improvement scheme of magnified image by using gradient information between adjacent pixel values  

Jung, Soo-Mok (Division of Computer, Sahmyook University)
Publication Information
Journal of the Korea Society of Computer and Information / v.17, no.2, 2012 , pp. 59-67 More about this Journal
Abstract
In this paper, an efficient interpolation scheme using gradient information between adjacent pixel values was proposed to estimate the value of interpolated pixel to have the locality which exists in real image and the characteristic of simple convex surface and simple concave surface which exist partially in the real image. PSNR(Peak Signal to Noise Ratio) was used to evaluate the performance of the proposed scheme. The PSNR values of the magnified images using the proposed scheme are greater than those of the magnified images using the previous interpolation schemes.
Keywords
Image magnification; Interpolation scheme; Bilinear interpolation; PSNR; Locality;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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