Categorical study of DWT and DCT techniques for efficient Digital Video Watermarking.

Abstract

The increasing popularity of the internet means that digital multimedia is transmitted more rapidly and easily. And people are very aware for media ownership. However, digital watermarking is an efficient and promising means to protect intellectual properties. Based on the intellectual property attention in the information era, how to protect the personal ownership is extremely important and a necessary scheme. In this paper, we are going to propose an effective video watermarking method based on identical frame extraction in 3-level Discrete Wavelet Transform (DWT) & effective video watermarking method based on DCT & embedding binary watermark into specially prepared plane in temporal dimensions in method suggests an algorithm for copyright protection of videos. The algorithm presented embeds a watermark into temporal dimension of cover content which is not perceivable to eyes but covers necessary information regarding copyright claim of the video. The main technique used for protection of hypothetical rights and copyright safekeeping is digital watermarking. Digital watermarking can be applied to media like text, audio, image, video etc. There is a growing importance in authentication and for protected copyright for Digital video streams. Nowadays, digital multimedia content (audio or video) can be copied and stored easily and without loss in fidelity.