Enhancing image security using data compression and spread spectrum watermarking technique

To protect multimedia information system like audio, video, text and image, digital watermarking could be a legendary technique that hides or cover one type of information into a different or same type of information to fulfill the needs of copyright protection. Digital watermarking makes an attempt to handle the issues regarding the management of characteristics of multimedia system such as possession recognition, authentication and certifications. A lot of efforts have been made to guard the image information from unauthorized access however some of them seemed not too effective. During this research work, we have a tendency to project a picture information to enhance the information security in digital watermarking. We propose an image data protection technique using the combination of data security such as encryption technique and digital watermarking. The implementation of the projected technique is accomplished in MATLAB 2012a simulator and the outcomes are analyzed using performance parameter such as PSNR, MAE, etc.