Self-embedding fragile watermarking scheme to restoration of a tampered image using AMBTC
Self-embedding fragile watermarking scheme to restoration of a tampered image using AMBTC
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DOI：
10.1007/s00779-017-1061-x
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发表时间：
2018-02
影响因子：
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通讯作者：
Cheonshik Kim;Dongkyoo Shin;Ching-Nung Yang
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文献类型：
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作者：
Cheonshik Kim;Dongkyoo Shin;Ching-Nung Yang
数字伪造问题在娱乐、数字取证和新闻等各个领域变得越来越严重。提出了一种用于数字伪造篡改后图像恢复的自嵌入水印方案。本研究采用绝对矩块截断编码图像作为水印，该图像是原始封面图像的压缩版本，包含了封面图像的内容特征。因此，实现自嵌入是完全可能的。采用LSB和2LSB对封面图像像素进行水印嵌入。这个程序使得从被篡改的水印图像中恢复原始水印图像成为可能。当篡改率大于80%时，重构也没有问题。此外，我们还通过实验验证了我们提出的自嵌入方案。实验结果表明，恢复后的图像具有较好的感知质量。
The problem of digital forgeries has become more and more serious in various fields like entertainment, digital forensics, and journalism. This paper proposes a self-embedding watermarking scheme for the restoration of an image after tampering by digital forgery. In this study, an absolute moment block truncation coding image was used as a watermark, in which the image was a compressed version of the original cover image and contained the content features of the cover image. Therefore, it was perfectly possible to perform self-embedding. The watermark was embedded using the LSB and 2LSB for the pixels of the cover image. This procedure made it possible to recover the original watermarked image from a tampered watermarked image. Furthermore, there was no problem in reconstructing it when the rate of tampering was more than 80%. In addition, we verified our proposed self-embedding scheme through an experiment. As a result of the experiment, the recovered image showed good perceptual quality compared to that of the previous scheme.