A Study of Orthogonal Components for Visible Image Data Hiding

Abstract

Digital data security covers many topics like authentication, copyright related protection and controlling of all still images, audio, multimedia related products. So the watermarking technique is so important because it is relevant to these protection areas. Watermarking technique can be classified in two types, Transformed Domain & Spatial Domain. In this paper we discuss about the process of marking digital pictures with undetectable hidden information but visible, which is called Watermark. It is based on complete Copyright Protection System (CPS). Digital Watermark Technique is a technology which is used for copyright protection of media & all digital applications. It is done by using Principal Component Analysis (PCA) & Discrete Wavelet Transform (DWT).
DOI: 10.17762/ijritcc2321-8169.1604154