计算机与数字工程2017，Vol.45Issue(10)：2009-2012,2067,5.DOI:10.3969/j.issn.1672-9722.2017.10.025
基于空间特性的自适应Retinex变分校正模型
Adaptive Retinex Variational Model Based on Spatial Information for the Uneven Intensity Correction
左芝勇1
作者信息
- 1. 中国西南电子技术研究所 成都610036
- 折叠
摘要
Abstract
Adaptive retinex variational model based on spatial information for the uneven intensity correction of remote sens-ing images is proposed.An adaptive regularization weight parameter based on spatial information is used to constrain TV regulariza-tion strength.In the edges,weak regularization strength is enforced to preserve detail,and in the homogeneous areas,strong regular-ization strength is enforced to eliminate the uneven intensity.Also,the"gray world"(GW)assumption based on the physical char-acteristics of reflectance is used to avoid overexposed regions. Finally,experimental results demonstrate the proposed method can correct uneven intensity distribution and preserve details.Compared to Kimmel's method and Li's method,the proposed method is better,based on the visual effect and quantitative assessments.关键词
亮度不均/变分校正方法/正则化/空间自适应Key words
intensity unevenness/variational correction method/regularization/spatially adaptive分类
信息技术与安全科学引用本文复制引用
左芝勇..基于空间特性的自适应Retinex变分校正模型[J].计算机与数字工程,2017,45(10):2009-2012,2067,5.
