Color Images Watermarking by Means of Independent Component Analysis

Abstract

With the proliferation of data exchange on the Internet, there has been significantly bared a crucial need for effective copyright protection mechanisms. Digital watermark technology has been widely applied to protect the copyright of digital media such as images, video, audio, and text. Robust watermarks must show high information rate and robustness against malicious and nonmalicious attacks, while keeping a low induced distortion. In this paper, we present a new robust hybrid watermarking scheme based on independent component analysis and the RGB decomposition. We present a robust and novel strategic invisible approach for insertion-extraction of a digital watermark, a color image, into color images. The novelty of our scheme makes use of the blind source separation model, to embed the watermark, by manipulating the least significant levels of the blue channel so as not to bring about a perceptible change in the marked image. We describe the logistics of the embedding scheme and an exemplary implementations show the high efficiency, of our hybrid method, against malicious attacks.