A blind digital watermarking scheme based on RS coding

Abstract

According to the robustness of digital watermarking, a robust blind watermarking algorithm based on RS coding technology is proposed and implemented. Before embedding watermark signal, RS channel encoding is carried out. When embedding and extracting the watermark, the relevance of the wavelet transform coefficients are calculated to extract and enhance the robustness. The experimental results show that the gain of 12dB is comparable with that of non coding.