A Retinex-Based Variational Model for Enhancement and Restoration of Low-Contrast Remote-Sensed Images Corrupted by Shot Noise

被引:8
|
作者
Febin, I. P. [1 ]
Jidesh, P. [1 ]
Bini, A. A. [2 ]
机构
[1] Natl Inst Technol Karnataka, Dept Math & Computat Sci, Surathkal 575025, India
[2] Indian Inst Informat Technol, Kottayam 686635, Kerala, India
关键词
Contrast enhancement; denoising; perceptual image processing; variational method; HISTOGRAM EQUALIZATION; FRAMEWORK; VISION;
D O I
10.1109/JSTARS.2020.2975044
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Remotely sensed images are widely used in many imaging applications. Images captured under adverse atmospheric conditions lead to degraded images that are contrast deficient and noisy. This study is intended to address these defects of remotely sensed data efficiently. A perceptually inspired variational model is designed based upon the Bayesian framework, powered by the retinex theory. The atmospheric noise or the shot noise (precisely following a Poisson distribution) and contrast inhomogeneity are addressed in this article. The model thus designed is tested and verified both visually and quantitatively using various test data under different statistical measures. The comparative study reveals the efficiency of the model.
引用
收藏
页码:941 / 949
页数:9
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