作者投稿和查稿 主编审稿 专家审稿 编委审稿 远程编辑

计算机工程 ›› 2012, Vol. 38 ›› Issue (2): 218-220. doi: 10.3969/j.issn.1000-3428.2012.02.072

• 图形图像处理 • 上一篇    下一篇

基于迭代分形解码和边缘扩展的图像修复算法

姚 燕,汤 进,罗 斌   

  1. (安徽大学计算智能与信号处理教育部重点实验室,合肥 230039)
  • 收稿日期:2011-07-08 出版日期:2012-01-20 发布日期:2012-01-20
  • 作者简介:姚 燕(1987-),女,硕士研究生,主研方向:数字图像处理;汤 进,副教授;罗 斌,教授
  • 基金资助:
    国家自然科学基金资助项目(61073116, 61003038);安徽省高校自然科学研究基金资助重点项目(KJ2010A006)

Image Inpainting Algorithm Based on Iterative Fractal Decoding and Edge Expansion

YAO Yan, TANG Jin, LUO Bin   

  1. (Key Laboratory of Intelligent Computing & Signal Processing, Ministry of Education, Anhui University, Hefei 230039, China)
  • Received:2011-07-08 Online:2012-01-20 Published:2012-01-20

摘要: 根据分形码的高压缩性,提出一种基于迭代分形解码和边缘扩展的图像修复算法。在信息嵌入阶段,运用1-D变换算法、2次推操作和换操作获取索引表,对照索引表将分形码和奇偶校验码存入图像的最低2位有效位中。在图像修复阶段,对接收到的图像进行3层篡改检测,迭代地采用提取的有效分形码和边缘扩展算法对篡改图像进行修复。实验结果表明,该算法能够获得较好的图像修复效果。

关键词: 分形图像编码, 迭代解码, 篡改检测, 边缘扩展, 图像修复

Abstract: Based on the high compressibility of the fractal code, an effective watermark scheme using the iterative fractal decoding and inpainting for image tamper detection and recovery is proposed. In watermark insertion section, it gets a look-up index table, and inserts the fractal code and the parity-check bits into the original image according to the look-up index table to obtain the watermarked image. By watermark extraction, it can automatically localize the altered region, and iteratively apply the fractal decoding and image inpainting for image recovery. Experimental results show the effectiveness of the proposed algorithm.

Key words: fractal image coding, iterative decoding, tampering detection, edge expansion, image inpainting

中图分类号: