文章基本信息

标题：Robust Image Watermarking Method using Wavelet Transform
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作者：Omar Adwan
期刊名称：Signal & Image Processing : An International Journal (SIPIJ)
印刷版ISSN：2229-3922
电子版ISSN：0976-710X
出版年度：2019
卷号：10
期号：5
页码：1-10
DOI：10.5121/sipij.2019.10503
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：In this paper a robust watermarking method operating in the wavelet domain for grayscale digital images is developed. The method first computes the differences between the watermark and the HH1 sub-band of the cover image values and then embed these differences in one of the frequency sub-bands. The results show that embedding the watermark in the LH1 sub-band gave the best results. The results were evaluated using the RMSE and the PSNR of both the original and the watermarked image. Although the watermark was recovered perfectly in the ideal case, the addition of Gaussian noise, or compression of the image using JPEG with quality less than 100 destroys the embedded watermark. Different experiments were carried out to test the performance of the proposed method and good results were obtained..
关键词：Watermarking; data hiding; wavelet transform; frequency domain