引入边缘信息的纹理传输改进算法
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福建省自然基金(2012J01262)


Improved Algorithm for Texture Transfer by Introducing Edge Information
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    摘要:

    本文针对Efros等人提出的块缝合纹理合成与传输算法, 在搜索匹配块的过程中未考虑目标图块边缘信息这一不足之处, 提出了一种改进算法. 新算法在原有的搜索误差匹配公式中, 通过计算梯度的方式增加了边缘信息处理项, 同时整个传输过程还引入了亮度重映射的匹配预处理策略. 实验结果表明, 改进后算法的传递效果优于传统算法, 尤其是目标图的边缘轮廓部分传递效果有比较明显的改善.

    Abstract:

    In Efros's classic image quilting algorithm for texture synthesis and transfer, edge information of a target image is not used in the search of blocks to match. We present an improved algorithm where a new edge item in terms of gradients is added to the original error formula for ensuring a better matching block, and a preprocessing strategy named luminance remapping is introduced in the transfer process. The experiments show that the transfer results of our algorithm are better than the traditional one, especially in the part of edges.

    参考文献
    1 Catmull E. Subdivision Algorithm for Computer Display of Curved Surfaces. Dept.of Computer Science, Univ.of Utah. Salt Lake City, Utah, l974.
    2 Efros AA, Leung TK. Texture synthesis by non-parametric sampling. Proc. of International Conference on Computer Vision, IEEE Computer Society. 1999. 1033-1038.
    3 Hertzmann A, Jacobs CE, Oliver N. Image analogies. Proc. of the 28 th Annual Conference on Computer Graphics and Interactive Techniques. New York, ACM Press. 2001. 327-340.
    4 Ashikhmin M. Synthesizing natural textures. 2001 ACM Symposium on Interactive 3D Graphics, 2001, (3): 217-226.
    5 Efros AA, Freeman WT. Image quilting for texture synthesis and transfer. Proc. of the 28th Annual Conference on Computer Graphics and Interactive Techniques. 2001. 341-346.
    6 Kwatra V, Schödl A, Essa I, Turk G, Bobick A.Graphcut textures: image and video synthesis using graph cuts. ACM Transactions on Graphics(TOG). ACM, 2003, 22(3): 277-286.
    7 郑秋旭,陈昭炯.基于约束的多样图纹理设计与合成算法.计算机系统应用,2010,19(1):108-113.
    8 黄志勇,何发智,张胜龙,蔡贤涛,程媛,梁铭铭,朱哲.基于随机查找的并行大规模纹理合成.计算机辅助设计与图形学学报,2011,23(6):1091-1098.
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    10 伍博,王燕,谷金宏.基于块拼贴技术的纹理传输研究.微计算机信息,2010(10):135-137.
    11 周世生,王东,桑贤生.基于纹理传输的烙画风格图像仿真.系统仿真学报,2010(12).
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文慧,陈昭炯.引入边缘信息的纹理传输改进算法.计算机系统应用,2013,22(11):143-147

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  • 收稿日期:2013-04-19
  • 最后修改日期:2013-05-20
  • 在线发布日期: 2013-11-22
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