Research on wavelet-based contourlet transform algorithm for adaptive optics image denoising
نویسندگان
چکیده
منابع مشابه
The Translation Invariant Wavelet-based Contourlet Transform for Image Denoising
A new method of image denoising using waveletbased contourlet transform (WBCT) is proposed. Due to the lack of translation invariance of WBCT, image denoising by means of WBCT would lead to Gibbs-like phenomena. In the paper,cycle spinning-based technique is applied to develop translation invariant WBCT denoising scheme. Many simulation experiments with images contaminated by additive white Gau...
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The contourlet transform has the benefit of efficiently capturing the oriented geometrical structures of images. In this paper, by incorporating the ideas of Stein’s Unbiased Risk Estimator (SURE) approach in Nonsubsampled Contourlet Transform (NSCT) domain, a new image denoising technique is devised. We utilize the characteristics of NSCT coefficients in high and low subbands and apply SURE sh...
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ژورنال
عنوان ژورنال: Optik
سال: 2016
ISSN: 0030-4026
DOI: 10.1016/j.ijleo.2016.02.042