Digital Watermarking Seminar Presentation
A Digital Watermarking is a kind of marker covertly embedded in a noise-tolerant signal such as an audio, video or image data. It is typically used to identify ownership of the copyright of such signal. Information hiding is an art and science of writing hidden messages in such a way that no one apart from the intended recipient knows of the existence of the message. The existence of information is secret.Watermark is an distinguishing mark impressed on paper during manufacture it visible when paper is held up to the light. Digital watermarking is hiding images,It can be perceptible(information in .doc), imperceptible(information in images). The application of watermarking Capacity, Robustness, Security. Spatial,Transform based watermarking,Robustness is an data domain categorization.More Capacity of Multiple Watermarks can be supported.Security is used in case the key used during watermark is lost anyone can read the watermark and remove it.