| 基于迭代分形解码和边缘扩展的图像修复算法 |
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| 引用本文： | 姚燕,汤进,罗斌. 基于迭代分形解码和边缘扩展的图像修复算法[J]. 计算机工程, 2012, 38(2): 218-220 |
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| 作者姓名： | 姚燕 汤进 罗斌 |
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| 作者单位： | 安徽大学计算智能与信号处理教育部重点实验室,合肥,230039 |
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| 基金项目： | 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） |
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| 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。
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| 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 |
| 收稿时间： | 2011-07-08 |
Image Inpainting Algorithm Based on Iterative Fractal Decoding and Edge Expansion |
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| YAO Yan , TANG Jin , LUO Bin. Image Inpainting Algorithm Based on Iterative Fractal Decoding and Edge Expansion[J]. Computer Engineering, 2012, 38(2): 218-220 |
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| Authors: | YAO Yan TANG Jin LUO Bin |
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| Affiliation: | (Key Laboratory of Intelligent Computing ＆ Signal Processing,Ministry of Education,Anhui University,Hefei 230039,China) |
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| 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. |
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| Keywords: | fractal image coding iterative decoding tampering detection edge expansion image inpainting |
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