作者
Sidheswar Routray, Prince Priya Malla, Sunil Kumar Sharma, Sampad Kumar Panda, G Palai
发表日期
2020/8/1
期刊
Optik
卷号
216
页码范围
164903
出版商
Urban & Fischer
简介
In this paper, we propose an advanced framework for image denoising using bilateral filtering based non-subsampled shearlet transform (NSST). Initially, we apply the NSST to decompose noisy input image into high and low frequency coefficients. The weighted bilateral filter (WBF) is then used to remove the noise from the low frequency coefficients while; thresholding is used to remove noise from the high frequency coefficients. The outputs of both the process are combined to form the resultant image. Finally, the inverse NSST is applied on the resultant output to estimate the final denoised image. To ensure validity of the proposed model, we conduct several experiments by considering different grayscale images with various noise variances. The qualitative and quantitative comparison is illustrated and it shows the improved performance of the proposed method as compared to the other conventional image …
引用总数
20202021202220232024251199