Color digital watermark method based on non-symmetry and anti-packing pattern representation model

With packing problem thinking, this paper proposes a non-symmetry and anti-packing pattern representation model which is short for NAM color image representation method. It presents a new color image representation algorithm based on NAM through decrypting NAM and the method of binary-bit plane decomposition (BPD) of color images. Experimental indicates that the method is the color image mode represents a good method. Based on the above method, this paper puts forward another method of embedding watermarks into the image represented by the above method. Experimental indicates that the embedded watermark method has a strong theoretical basis and is easy to implement, and can effectively resist different types of attack.