A Robust And Deterministic Watermarking Approach Based On Bird Swarm Optimization For Improving QoS

Abstract

newlineW newlineAtermarking is the process of embedding data called a water mark into a multimedia object such that watermark can be detected or extracted later to make an assertion about the object. The object may be an audio, image or video. A copy of a digital image is identical to the original. This has in many in stances, led to the use of digital content with malicious intent. One way to protect multimedia data again still legal recording and retrains mission is to embed a signal, called digital signature or copyright label or watermark that authenticates the owner of the data. Data hiding, schemes to embed secondary data in digital media, have made considerable progress in recent years and attracted attention from both academia and industry. Techniques have been proposed for a variety of applications, including ownership protection, authentication and access control. Imperceptibility, robustness against moderate processing such as compression, and the ability to hide many bit sare the basic but rather conflicting requirements for many data hiding applications. As simple example of digital watermark would be a visible seal placed over an image to identify the copyright. However the watermark might contain additional information including the identity of the purchaser of a particular copy of the object. newline newline newlineMost of the existing algorithms provide better solution for embedding watermark into digital image without declining quality of the image file. But some of the techniques has bad channel interference therefore, the watermarks gets erased by inserting random bits labeled. newline newlineOur proposed method tries to address the problem of embedding watermarks in image with better security. The proposed methodology also survives the attacks on the network. newline newline newline newline