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Implementing real-time RCF-Retinex image enhancement method using CUDA

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Abstract

RCF-Retinex is a novel Retinex-based image enhancement method which can improve contrast, eliminate noise, and enhance details simultaneously. It utilizes region covariance filter (RCF) to estimate the illumination. However, RCF-Retinex encounters time-consuming problem, since the region covariance filter is computationally intensive, which restricts the practical application in real-time systems. Therefore, it is necessary to decrease the computational complexity by parallelization. This paper proposes a GPU-based RCF-Retinex, which can accelerate region covariance filter using CUDA. It is feasible to use CUDA to parallel the region covariance filter due to its consecutive convolution operations, thus we can obtain the illumination image fast. Experiments have proved the improvement of running time and the enhancement results are similar with those using the unaccelerated RCF-Retinex method.

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Authors and Affiliations

  1. College of Electronics and Information Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, China

    Xiaomin Yang, Lihua Jian, Wei Wu & Binyu Yan

  2. College of Computer Science, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, China

    Jian Peng

  3. School of Electrical Engineering and Information, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu, China

    Kai Liu

  4. Jiangsu Engineering Center of Network Monitoring and School of Computer and Software, Nanjing University of Information Science and Technology, Nanjing, China

    Zhili Zhou

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  1. Xiaomin Yang
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  2. Lihua Jian
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  3. Wei Wu
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  4. Kai Liu
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  5. Binyu Yan
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  6. Zhili Zhou
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  7. Jian Peng
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Correspondence to Jian Peng.

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Yang, X., Jian, L., Wu, W. et al. Implementing real-time RCF-Retinex image enhancement method using CUDA. J Real-Time Image Proc 16, 115–125 (2019). https://doi.org/10.1007/s11554-018-0803-y

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  • DOI: https://doi.org/10.1007/s11554-018-0803-y

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