TY - JOUR
T1 - Adaptive Correction Algorithm for Non-Uniform Illumination Images
AU - Wang, Jing
AU - Xu, Zhijie
AU - Wang, Dianwei
AU - Liu, Ying
PY - 2017/6/1
Y1 - 2017/6/1
N2 - An adaptive correction algorithm for non-uniform illumination images is proposed, which can eliminate the impact of non-uniform illumination on imaging results. Firstly, the illumination component is extracted by the fast guided image filter based on the luminance-reflection imaging model. In succession, an improved two-dimentional Gamma function dynamically adjusted by the local distribution characteristics of illumination is constructed, which can increase the intensity value at the low-level illumination regions and vice versa at the high-level illumination regions in the luminance domain. Finally, the non-uniform illumination image is adjusted adaptively by the proposed algorithm. Experimental results of different imaging scenarios show that the proposed algorithm can reduce the impact caused by non-uniform illumination and enhance the quality of the images.
AB - An adaptive correction algorithm for non-uniform illumination images is proposed, which can eliminate the impact of non-uniform illumination on imaging results. Firstly, the illumination component is extracted by the fast guided image filter based on the luminance-reflection imaging model. In succession, an improved two-dimentional Gamma function dynamically adjusted by the local distribution characteristics of illumination is constructed, which can increase the intensity value at the low-level illumination regions and vice versa at the high-level illumination regions in the luminance domain. Finally, the non-uniform illumination image is adjusted adaptively by the proposed algorithm. Experimental results of different imaging scenarios show that the proposed algorithm can reduce the impact caused by non-uniform illumination and enhance the quality of the images.
KW - Fast guided image filter
KW - Image enhancement
KW - Non-uniform illumination correction
KW - Two-dimentional Gamma function
UR - http://www.scopus.com/inward/record.url?scp=85027847338&partnerID=8YFLogxK
U2 - 10.3969/j.issn.1001-506X.2017.06.29
DO - 10.3969/j.issn.1001-506X.2017.06.29
M3 - Article
AN - SCOPUS:85027847338
VL - 39
SP - 1383
EP - 1390
JO - Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics
JF - Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics
SN - 1001-506X
IS - 6
ER -