An Approach of Digital Image Copyright Protection by Using Watermarking Technology
This addresses copyright protection for digital media owners, but it appears incremental as it builds on existing watermarking and cryptography techniques.
The paper tackles digital image copyright protection by proposing a watermarking system that embeds a permutated watermark into wavelet coefficients using a key, combining cryptography for enhanced security.
Digital watermarking system is a paramount for safeguarding valuable resources and information. Digital watermarks are generally imperceptible to the human eye and ear. Digital watermark can be used in video, audio and digital images for a wide variety of applications such as copy prevention right management, authentication and filtering of internet content. The proposed system is able to protect copyright or owner identification of digital media, such as audio, image, video, or text. The system permutated the watermark and embed the permutated watermark into the wavelet coefficients of the original image by using a key. The key is randomly generated and used to select the locations in the wavelet domain in which to embed the permutated watermark. Finally, the system combines the concept of cryptography and digital watermarking techniques to implement a more secure digital watermarking system.