Review on Digital Watermarking Techniques and Its Retrieval

The goal of the current review is to explore how to protect users' security and privacy when using digital watermarking, as well as to cover the research component. A digital watermark is a signal that transmits data about the creator or supplier of the media. The placement of a digital watermark on digital media makes it visible to computers but not the human eye. In digital watermarking embedded the watermark in original images or audio-video data by using embedding algorithm and then extract the watermark image from original image by using extracting algorithm. In this more than 40 research papers have been reviewed in the period of 2000 to 2022 and found three issues namely Perceptual Transparency, Payload of the Watermark and Robustness. These challenges led to the discovery of the findings, strengths, weaknesses, and solutions approaches.