作者
Sandeep Mellimi, Vishal Rajput, Irshad Ahmad Ansari, Chang Wook Ahn
发表日期
2021/11/1
期刊
Pattern Recognition Letters
卷号
151
页码范围
222-228
出版商
North-Holland
简介
In this work, a robust image watermarking method is proposed based on the LWT (lifting wavelet transform) and DNN (Deep Neural Network). Watermark embedding uses wavelet transforms that help in maintaining a high value of imperceptibility and robustness. Different frequency bands are tested to find the optimum balance between robustness and imperceptibility. To check the robustness of proposed work, various attacks like compression attacks, noise attacks and filtering attacks are used. Deep Neural Network is trained to identify the changes made by these attacks on the different frequency bands. The use of high-frequency sub-band (LH (low-high)/LH1/HL (high-low) 2) for watermark insertion enhances the invisibility of scheme. On the contrary, various sub-bands perform differently (in terms o/f robustness) against the different types of attacks. The proposed scheme is tested on 600 images and the average …
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