Image Resolution Enhancement Using Transform

Syed Nazeeburrehman, Mohameed Ali Hussain

Abstract


In this project, interruption based image resolution enhancement technique using Discrete Wavelet Transform (DWT) with high-frequency sub bands obtained is proposed. Input images are decomposed by using DWT in this proposed enhancement technique. Inverse DWT is used to generate a new resolution enhanced image from the interpolation of high-frequency sub band images and the input low-resolution image. Intermediate stage has been proposed for estimating the high frequency sub bands to achieve a sharper image. It has been tested on benchmark images from public database. Peak Signal-To-Noise Ratio (PSNR) and visual results show the dominance of the proposed technique over the predictable and state-of-art image resolution enhancement techniques.

Keywords


Satellite enhancement, DWT, PSNR

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DOI: http://doi.org/10.11591/ijeecs.v9.i2.pp354-356

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