Title
Two-dimensional gray scale image denoising via morphological operations in NSST domain & bitonic filtering.
Abstract
The denoising of an image is one of the most classical and basic step in image processing. The most challenging task is to design a feature preserving denoising algorithm. This article presents an efficient denoising method derived from morphological filtering in NSST domain and Bitonic filtering. In the first stage the noisy components are processed by morphological circular disc operators i.e. Top Hat/ Bottom Hat filtering in NSST domain, as Shearlet is a powerful multi-scale and multi-directional image representation tool. The resultant image is then decomposed into 8 bit planes and each bit plane is passed through bitonic filter separately. These filtered images are assembled to obtain the final denoised image. Experimental results on standard test images substantiate that the proposed method achieves reasonable and consistent denoising performance, especially in preserving fine structure information as compared with existing algorithms specifically at high noise levels.
Year
DOI
Venue
2018
10.1016/j.future.2017.12.034
Future Generation Computer Systems
Keywords
Field
DocType
Morphological operations,Shearlet,Bitonic filter,Bit-plane slicing,Denoising
Noise reduction,Bit plane,Pattern recognition,Computer science,8-bit,Filter (signal processing),Image processing,Shearlet,Real-time computing,Operator (computer programming),Artificial intelligence,Grayscale
Journal
Volume
ISSN
Citations 
82
0167-739X
2
PageRank 
References 
Authors
0.36
16
4
Name
Order
Citations
PageRank
Bhawna Goyal1303.56
Ayush Dogra2141.87
Sunil Agrawal3458.58
B. S. Sohi4356.36