A Survey: Digital Image Watermarking-Robustness and Imperceptibility

With the Internet expanding, multimedia security has become a significant problem. As digital image manipulation is getting simpler, the certification of authenticity has become more difficult. Digital watermarking outperforms conventional security methods for protecting photos from attacks. The need for reliable image authentication methods in the contemporary digital era has always been a hot topic among academics and researchers. When transmitting sensitive information today through a regular correspondence route, many hacks are possible. Everyone, therefore, requires their digital data to be non-tampered. Many solutions are available like stenography, cryptography, and watermarking. Watermarking gives promising results when it comes to the authenticity of the images. The robustness and imperceptibility of several existing watermarking techniques are demonstrated in this study and critical analysis is performed. Additionally, the author provides a thorough introduction to key ideas like the transform domain and the spatial domain. This study also offers a thorough analysis of contemporary methods for watermarking digital images while showcasing established practices in various domains. Hence, this research study could potentially serve as a viable resource for researchers seeking to develop effective watermarking techniques for practical applications.