Digital watermarking has emerged as a potential solution to the copyright protection related issues of digital data. This paper presents key paradigms of research in robust watermarking techniques for copyright protection, copy protection, and authentication of digital multimedia. The main issues that derive research in robust watermarking schemes are imperceptibility, security, and robustness. The purpose of this paper is to provide a gist of robust watermarking schemes in the transform domain with the help of some brief theories proposed in the literature. Frequency transformation techniques such as DCT, DFT, and DWT, RDWT have been the most widely used methods to develop robust watermarking algorithms in the transform domain. The general framework of the watermarking system, recent application areas, characteristics, classification of information hiding methods, and various performance evaluation parameters considered by researchers have also been presented in this review. Broadly, this study reviews and compare performance summary of the several state-of-art robust watermarking methods available. This survey paper will be beneficial for the researchers keen to contribute to the field of robust digital watermarking particularly in the transform domain.

数字水印已经成为解决与版权保护相关的数字数据问题的潜在解决方案。本文介绍了用于版权保护，复制保护和数字多媒体认证的健壮水印技术的主要研究范例。鲁棒水印方案中引起研究的主要问题是不可感知性，安全性和鲁棒性。本文的目的是在文献中提出的一些简短理论的帮助下，在变换域中提供鲁棒水印方案的要点。诸如DCT，DFT和DWT，RDWT之类的频率变换技术已成为在变换域中开发鲁棒水印算法的最广泛使用的方法。水印系统的总体框架，近期应用领域，特点，本文还介绍了信息隐藏方法的分类以及研究人员考虑的各种性能评估参数。概括地说，本研究回顾并比较了几种可用的最先进的鲁棒水印方法的性能摘要。对于希望在鲁棒的数字水印领域做出贡献的研究人员，尤其是在变换领域，本调查论文将是有益的。