计算机科学 ›› 2018, Vol. 45 ›› Issue (2): 297-300.doi: 10.11896/j.issn.1002-137X.2018.02.051
赵军辉,吴玉峰,胡坤融,蒲斌
ZHAO Jun-hui, WU Yu-feng, HU Kun-rong and PU Bin
摘要： 针对低照度图像对比度增强处理中的细节保留和色彩恒常问题,提出一种新颖的基于Lab色彩空间和色调映射的Retinex图像对比增强算法。首先,在Lab色彩空间中将一个低对比度的输入图像分解成亮度和色度分量,并使用自适应双边滤波估计照明的强度,以便根据亮度和颜色值来考虑合适的相邻像素。然后利用基于抛物线的色调映射函数来提高估计光照图像的对比度。最后,将加强的亮度和原始的色度结合在一起以产生一个增强的彩色输出图像。实验结果表明,所提算法通过减弱图像伪影增强了图像的细节和边缘结构,同时通过避免色彩偏移较好地保留了图像的自然度。
| [1] SHIN K Y,PARK Y H,NGUYEN D T,et al.Finger-vein imageenhancement using a fuzzy-based fusion method with Gabor and Retinex filtering [J].Sensors,2014,14(2):3095. [2] PRABHU M,RAJARAJAN S,KARTHIKEYAN M P.Implementing histogram equalization and retinex algorithms for image contrast enhancement [J].International Journal of Applied Engineering Research,2014,9(20):7311-7318. [3] JOBSON D J,RAHMAN Z,WOODELL G A.Properties andperformance of a center/surround retinex [J].IEEE Transactions on Image Processing,1997,6(3):451-462. [4] WANG Y,WANG H,YIN C,et al.Biologically inspired image enhancement based on Retinex [J].Neurocomputing,2016,177:373-384. [5] DU M,ZHAO X J.Improved Retinex algorithm for illumination change face image enhancement [J].Computer Science,2016,43(2):105-108.(in Chinese) 杜明,赵向军.改进Retinex的光照变化人脸图像增强算法[J].计算机科学,2016,43(2):105-108. [6] QIN X J,WANG H L,DU Y C,et al.The Retinex structured light image enhancement algorithm for HSV color space [J].Journal of Computer-Aided Design & Computer Graphics,2013,25(4):488-493.(in Chinese) 秦绪佳,王慧玲,杜轶诚,等.HSV色彩空间的Retinex结构光图像增强算法[J].计算机辅助设计与图形学学报,2013,25(4):488-493. [7] LIU Y L,FAN J B,DUAN N X.Variable infrared image enhancement based on bilateral filtering [J].Laser Journal,2016,37(8):86-88.(in Chinese) 刘雅莉,樊景博,段乃侠.基于双边滤波的变分红外图像增强 [J].激光杂志,2016,37(8):86-88. [8] QIN X J,CHENG Y F,FAN Y L,et al.HSV color space Re-tinex image enhancement algorithm based on three edge filter [J].Journal of Chinese Computer Systems,2016,37(1):168-172.(in Chinese) 秦绪佳,程燕飞,范颖琳,等.基于三边滤波的HSV色彩空间Retinex图像增强算法 [J].小型微型计算机系统,2016,37(1):168-172. [9] WANG S,ZHENG J,HU H M,et al.Naturalness Preserved Enhancement Algorithm for Non-Uniform Illumination Images [J].IEEE Transactions on Image Processing,2013,22(9):3538-3548. [10] AHN H,KEUM B,KIM D,et al.Adaptive local tone mapping based on retinex for high dynamic range images [C]∥IEEE International Conference on Consumer Electronics.2013:153-156. [11] JIANG B,WOODELL G A,JOBSOND J.Novel multi-scale re-tinex with color restoration on graphics processing unit [J].Journal of Real-Time Image Processing,2015,10(2):239-253. [12] XIE X M,WANG C M,ZHANG A J.Color Image Enhancement Methods Based on Matlab [J].Applied Mechanics & Materials,2013,300-301:1664-1668. [13] TSAI C M.Adaptive Local Power-Law Transformation for Co-lor Image Enhancement [J].Applied Mathematics & Information Sciences,2013,7(5):2019-2026. [14] NNOLIM U A.Log-hybrid architecture for tonal correctioncombined with modified un-sharp masking filter algorithm for colour image enhancement [J].Integration the Vlsi Journal,2014,48(1):221-229. [15] LI H B,YU C B,ZHANG D M,et al.Study on finger vein image enhancement based on ridgelet transformation[J].Journal of Chongqing University of Posts and Telecommunication (Natural Science Edition),2011,3(2):224-230.(in Chinese) 李洪兵,余成波,张冬梅,等.基于脊波变换的手指静脉图像增强研究[J].重庆邮电大学学报(自然科学版),2011,3(2):224-230. |
| No related articles found! |
|
||
首页