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Image resolution enhancement is one of the first steps in image processing. Enhancement of image with respect to spatial coordinates of the image, basically improves interpretability and perception of an image. Adaptive interpolation along with dual tree complex wavelet transform results in better quality superresoved images. Greater directional selectivity and phase information properties of redundant CWT implies superresolved image from original low resolution image. While improving the resolution of an image high frequency components are required to preserve other than enlarging the image. In this paper, dual tree complex wavelet transform (DTCWT) based superresolved imaging system along with non iterative orientation interpolation process is proposed. Image quality measuring factors such as PSNR value, RSNI approximation proves that efficiency of images obtained by proposed method is better than state of the art system of resolution enhancement. General Terms Image resolution enhancement, Interpolation.

Dual Tree Complex Wavelet Transform (DTCWT) based Adaptive Interpolation Technique for Enhancement of Image Resolution