K.Nirmala

Work place: Department of ECE, Gudlavalleru Engineering College

E-mail: Nirmala.kuthadi@gmail.com

Website:

Research Interests: Image Compression, Image Manipulation, Image Processing

Biography

Ms. K. Nirmala completed her M.Tech with distinction and presently working as Assistant Professor in Gudlavalleru Engineering College. She has an overall teaching experience of more than 2 years. Her research interests includeLow Power VLSI, Image processing, etc.

Author Articles
Image Resolution Enhancement by Using Stationary and Discrete Wavelet Decomposition

By Battula.R.V.S.Narayana K.Nirmala

DOI: https://doi.org/10.5815/ijigsp.2012.11.06, Pub. Date: 8 Oct. 2012

This work proposed an image resolution enhancement technique which is based on the interpolation of the high frequency subbands obtained by DWT. The proposed technique uses DWT to decompose an image into different subbands, and then the high frequency subband images have been interpolated. The interpolated high frequency subband coefficients have been corrected by using the high frequency subbands achieved by SWT of the input image. An original image is interpolated with half of the interpolation factor used for interpolation the high frequency subbands. Afterwards all these images have been combined using IDWT to generate a super resolved imaged. The proposed technique has been tested on well-known benchmark images, where their PSNR, Mean Square Error and Entropy results show the superiority of proposed technique over the conventional and state-of-art image resolution enhancement techniques.

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