A Chinese text watermark algorithm based on pOLYPHONE

Based on the principle of zero-watermarking, this paper adopts the pronunciation of polyphone characters and the features between two polyphones of Chinese characters to construct the zero-watermarking algorithm, and produces a Chinese text watermark algorithm based on polyphone. Simulation results show that the algorithm not only meets with better invisibility and robustness, but can identify the attacks of deleting, adding and replacing characters.