Blind Additive Gaussian White Noise Level Estimation from a Single Image by Employing Chi-Square Distribution

The additive Gaussian white noise (AGWN) level in real-life images is usually unknown, for which the empirical setting will make the denoising methods over-smooth fine structures or remove noise incompletely. The previous noise level estimation methods are easily lost in accurately estimating them f...

Full description

Bibliographic Details
Main Authors: Zhicheng Wang, Qing An, Zifan Zhu, Hao Fang, Zhenghua Huang
Format: Article
Language:English
Published: MDPI AG 2022-10-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/24/11/1518