| 基于耦合全变差的快速图像着色算法 |
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| 引用本文： | 金正猛,周晨.基于耦合全变差的快速图像着色算法[J].电子学报,2016,44(10):2364-2369. |
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| 作者姓名： | 金正猛 周晨 |
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| 作者单位： | 南京邮电大学理学院, 江苏南京 210023 |
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| 基金项目： | 国家自然科学基金重大研究计划(培育项目)(No．91330101)；江苏省高校自然科学基金(No．15KJB110018)；江苏省省级重点STITP (No．SZDG2015028)；南京邮电大学科研基金(NY215088) |
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| 摘 要： | 本文在YCbCr色彩空间机制下，结合目标灰度图像的梯度信息，提出基于耦合全变差的图像着色模型.然后，利用交替方向乘子算法（ADMM），设计所提模型的快速数值求解算法，并给出了该算法的收敛性结果.最后，数值实验结果表明，该模型在快速着色的同时，能有效地防止颜色越界.
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| 关 键 词： | 图像处理 图像着色 耦合全变差 交替方向乘子算法 |
| 收稿时间： | 2015-03-13 |
A Fast CoupIed TotaI Variation AIgorithm for I mage CoIorization |
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| JIN Zheng-meng,ZHOU Chen.A Fast CoupIed TotaI Variation AIgorithm for I mage CoIorization[J].Acta Electronica Sinica,2016,44(10):2364-2369. |
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| Authors: | JIN Zheng-meng ZHOU Chen |
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| Affiliation: | School of Science, Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu 210023, China |
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| Abstract: | Under the YCbCr color space mechanism,we propose a coupled total variation model for image coloriza-tion by combining the gradient of target grayscale image.Then we design a fast algorithm to solve the proposed model nu-merically by incorporating the alternating direction method of multipliers(ADMM)algorithm,and give the convergence re-sults of the proposed algorithm.Finally,experimental results are reported,demonstrating that the proposed model can effec-tively prevent colors from crossing over the edges of the target grayscale image during fast colorization. |
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| Keywords: | image processing image colorization coupled total variation alternating direction method of multipli-ers(ADMM)algorithm |
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