The Modulation Method Based on Reed-Solomon Code for Watermarking

The modulation method base on Reed-Solomon code for watermarking technology is proposed here. The DC, low-frequency coefficients, the inter-block correlation and Reed-Solomon code will be combined in order to develop a robustness watermarking. In other words, the inter-block correlation and the DC, low frequency coefficients which are belongs to the important parameter in the image are used to output the message vector of Reed-Solomon code. After adjusting, the redundancy vector will be embedded in the host image. In addition, the result of Reed-Solomon decoder, succeed or fail, will be used to represent the watermark in the further. That is to say, as Reed-Solomon code succeeds in decoding step, the ones that mean the embedding / extracting watermark materials are ´1´. On the contrary, it is ´0´. Moreover, the proposed algorithm is belongs to oblivious watermarking. The experimental results have demonstrated that the proposed scheme has satisfied the basic requirements of watermarking.