Spread spectrum image watermarking based on the discrete shearlet transform
Spread spectrum image watermarking based on the discrete shearlet transform
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发表时间：
2013-06
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通讯作者：
Baharak Ahmederahgi;F. Kurugollu;P. Milligan;A. Bouridane
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作者：
Baharak Ahmederahgi;F. Kurugollu;P. Milligan;A. Bouridane
本文提出了一种基于扩频的图像水印模型，该模型利用离散剪切波变换（DST）。该方法利用DST的多分辨率表示特性来促进给定图像的纹理结构的建模。实验结果证明了该方法在处理噪声添加、模糊、压缩和裁剪等众所周知的攻击方面的有效性。实验结果表明，与离散余弦变换（DCT）和离散小波变换（DWT）等对应变换相比，该方法表现良好。
This paper presents a spread spectrum based image watermarking model that utilizes the Discrete Shearlet Transform (DST). The method employs the multiresolution representation characteristics of the DST to facilitate the modeling of the texture structure of the given image. The effectiveness of the proposed method in dealing with well-known attacks such as noise addition, blurring, compression and cropping is demonstrated by experimental results. The experimental results show that the proposed method performs well in comparison with counterpart transforms such as the Discrete Cosine Transform (DCT) and the Discrete Wavelet Transform (DWT).