A Robust Copyright Protection Scheme for Still Images

Abstract

A wavelet-based watermarking scheme that does not require the original image for water mark extraction is proposed. The scheme is strong enough to resist malicious manipulations including blurring, JPEG compression, noising sharpening, scaling, rotation, and printing-photocopying-scanning attacks. It is worthwhile to mention that the scheme is resistant to StirMark and unZign attacks. This new scheme is not only a robust method but also a lossless one. A series of experiments are conducted to prove the robustness property of this method.