期刊名称：International Journal of Advances in Engineering and Management
电子版ISSN：2395-5252
出版年度：2021
卷号：3
期号：5
页码：949-952
DOI：10.35629/5252-0305846860
语种：English
出版社：IJAEM JOURNAL
摘要：As an effective means of copyright protection, the digital watermarking technology has attracted wide attention. Traditional digital watermarking can cause some distortion of the original image after embedding some information. But in some special applications, it is required to restore the original image; thus, the reversible digital watermarking emerges as the times require. Different from traditional digital watermarking method, reversible watermarking technology can recover the original host information without distortion after extracting the watermark information, which is badly needed in the area of military intelligence, medical records, and legal argumentation demanding, so it has been widely developed in recent years. The amplitude of the exploited low-order Zernike moments are: 1) mathematically invariant to scaling the size of an image and rotation with any angle; and 2) robust to interpolation errors during geometric transformations, and those common image processing operations. To reduce the compensation information, the robust watermarking process is elaborately and luminously designed by using the quantized error, the watermarked error and the rounded error to represent the difference between the original and the robust watermarked image. As a result, a coverlossless robust watermarking system against geometric deformations is achieved with good performance.
