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Wavelet Transform based Estimation of Images using different Thresholding Techniques
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 167 - Number 8 |
| Year of Publication: 2017 |
| Authors: Sk. Ayesha, M. V. R. Amara Lingeswara Rao, Koteswararao Mallaparapu |
10.5120/ijca2017914351
|
Sk. Ayesha, M. V. R. Amara Lingeswara Rao, Koteswararao Mallaparapu . Wavelet Transform based Estimation of Images using different Thresholding Techniques. International Journal of Computer Applications. 167, 8 ( Jun 2017), 20-24. DOI=10.5120/ijca2017914351
Abstract
Estimating the images using decimated wavelet transform is very popular technique in different applications. In this paper a new thresholding function with combination of Smoothly Clipped Absolute Deviation (SCAD), Hard thresholding and soft thresholding functions are introduced for wavelet based denoising of images. The proposed technique is applied for denoising of noisy images contaminated with additive white Gaussian noise using Top rule and Visu rule. The results are compared with that of existing SCAD, hard and soft functions denoising method. Root Mean Square Error (RMSE) and Peak Signal to Noise Ratio (PSNR) are used as parameters for testing the quality of denoising.
References
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