无线电工程2024，Vol.54Issue(6)：1470-1480,11.DOI:10.3969/j.issn.1003-3106.2024.06.016
基于颜色校正与改进的CLAHE多尺度融合水下图像增强
Underwater Image Enhancement Based on Color Correction and Improved CLAHE Multi-scale Fusion
摘要
Abstract
Due to the absorption and scattering of light by water bodies,the underwater images are prone to color cast and low contrast.In order to address the above problems,a multi-scale fusion underwater image enhancement method based on color correction and improved Contrast Limited Adaptive Histogram Equalization(CLAHE)is proposed.Firstly,an improved version of white balance method with automatic contrast adjustment is proposed to correct the color of the image.Secondly,the CLAHE with adaptive gamma correction is used to improve the contrast,brightness,contour features and details of the image.Finally,a multi-scale fusion of different feature maps extracted using Gaussian and Laplacian pyramids is performed to achieve enhancement of underwater images.Additionally,the subjective and objective evaluations and comparative analysis of the proposed algorithm with other algorithms are conducted.The comparative experimental results show that the quality of underwater images enhanced by the proposed method is significantly improved.The average values of Underwater Color Image Quality Evaluation(UCIQE),information entropy and Underwater Image Quality Measure(UIQM)evaluation indicators are 0.639 0,7.714 9,and 0.718 3,respectively,which all prove the effectiveness of the proposed method.In addition,the ablation experimental results also prove the rationality of the proposed algorithm.The proposed algorithm can effectively solve the problem of color cast in underwater images,improve the contrast and brightness of underwater images in a balanced manner,and enhance the edge and detail features of the image.关键词
水下图像增强/多尺度融合/白平衡/自适应伽马校正/限值对比度自适应直方图均衡Key words
underwater image enhancement/multi-scale fusion/white balance/adaptive gamma correction/CLAHE分类
信息技术与安全科学引用本文复制引用
弭永发,迟明善,张强,刘鹏杰,王天佑..基于颜色校正与改进的CLAHE多尺度融合水下图像增强[J].无线电工程,2024,54(6):1470-1480,11.基金项目
山东省自然科学基金面上项目(ZR2022ME087) （ZR2022ME087）
山东交通学院2023年校级研究生科技创新项目立项(2023YK097) （2023YK097）
山东交通学院博士科研启动基金(BS2024009)General Program of Natural Science Foundation of Shandong Province(ZR2022ME087) （BS2024009）
2023 Graduate Science and Technology Innovation Project of Shandong Jiaotong University(2023 YK097) （2023 YK097）
Doctoral Scientific Research Start-up Fund of Shandong Jiaotong University((BS2024009) （(BS2024009）
