A Review of Digital Image Watermarking Technology

In recent times, the concern surrounding multimedia security has grown more prominent. With the development of network technology and multimedia technology, a large number of enterprises in China have emerged with streaming media technology as their core business. These enterprises have a good development trend and broad prospects, which has attracted more and more freelancers and organizations to participate in multimedia creation. Various media forms, including images, videos, audio files, and text files, are progressively losing their reliability due to their susceptibility to distortion or alteration through tampering tools. Therefore, maintaining the authenticity and integrity of digital media has become the primary goal. Multimedia data also presents various challenges, including unauthorized distribution, information overload, and alteration of the content it represents. In this paper, watermarking methods are categorized according to their distinct operational mechanisms. The discussion also covered attacks, applications and requirements related to watermarking technology. Watermarks don't just keep the content from being changed. They can also offer data integrity and content verification. By adding information about the original signal to the image, watermarking technology improves the security of the original image.