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基于无损自嵌入的图像修复方法

Image error concealment base on lossless self-embedding
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摘要 给出了一种基于无损自嵌入的图像修复方法.将JPEG压缩图像减采样,并半色调化为二值图像,使用无损数据隐藏的方法嵌入到原始图像的中低频DCT系数中.在信息提取时,原图像可得到无损地恢复;同时对提取的信息,使用反半色调化的方法可重构一幅低质量图像,当原图像中出现缺损时,可以近似地修复受损部分. This paper presents an image error concealment method using lossless serf-embedding. JPEG image was downsampled and halftoned to binary image, which was embedded into the low ＆ middle DCT coefficients using the lossless data hiding method. When data were extracted, original image could be recovered losslessly, and a low- quality image was reconstructed from the hidden data using inverse halftoning and upsampling. Errors on the image could be concealed with the low-quality image.
作者 钱振兴 程义民 葛仕明 曾丹
机构地区 中国科学技术大学电子科学与技术系
出处 《中国科学院研究生院学报》 CAS CSCD 2007年第3期336-341,共6页 Journal of the Graduate School of the Chinese Academy of Sciences
关键词 无损隐藏 自嵌入 图像修复 差错隐藏 lossless data hiding, self-embedding, inpainting, error concealment
分类号 TP391 [自动化与计算机技术—计算机应用技术]
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参考文献13

  • 1Adsumilli CB,Farias CQ,et al.A robust error concealment technique using data hiding for image and video transmission over lossy channels.IEEE Transaction on Circuits and Systems for Video Technology,2005,15(11):1394～ 1406
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二级参考文献8

  • 1程义民,钱振兴,王以孝,田源.基于数位信息的信息隐藏方法[J].电子与信息学报,2005,27(8):1304-1309. 被引量：15
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  • 8张鸿宾,杨成.图像的自嵌入及窜改的检测和恢复算法[J].电子学报,2004,32(2):196-199. 被引量：49

共引文献11

中国科学院研究生院学报
2007年 第3期

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