Digital Watermarking Algorithm Based on Diagonally Dominant Matrix
Shaozhang Niu · Beijing Youdian Xueyuan xuebao · 2004
A new digital watermarking algorithm based on diagonally dominant matrix is proposed. The diagonally dominant matrix is constructed by the corresponding nonnegative matrix of the original image. A pseudo-random sequence as digital watermarking is embedded into the built matrix of especial properties by using the scale quantization function. The original image is not needed in the recover progress. Experimental results show that this new algorithm is robust and easy to embed and extract.