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| Image Colorization without Edge Crossover of Colors Based on Anisotropic Diffusion |
| Chen Ying①② Wang Shuo-zhong① |
①(School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China)
②(School of Computer Science and Information Engineering, Shanghai Institute of Technology, Shanghai 201418, China) |
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Abstract 图像彩色化是根据人工描绘的局部初始颜色用计算机为灰度图像着色。该文提出一种各向异性的非线性扩散图像彩色化方法，该方法能够克服颜色越界问题。首先建立基于偏微分的扩散方程，通过设置自适应的张量函数，使颜色在平滑区域快速均匀扩散，在颜色交界处按各向异性方式扩散，能够有效增强边缘颜色的连贯性。算法采用有限差分法实现扩散方程的数值求解，与当前流行的彩色化技术相比，该方法能得到更加清晰自然的彩色化图像和更高的图像质量。
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Received: 21 April 2013
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Corresponding Authors:
Chen Ying
E-mail: cheny8262@163.com
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2014, Vol. 36 
