CAJ | 학술논문

针对基于汉字的文本嵌入比较困难,水印不可见性不高,鲁棒性不高等特点,提出一种基于汉字笔画数的文本零水印新算法,算法通过统计各汉字在文本中的使用频率,即可得到使用频率最高的汉字,使用频率最高汉字的笔画数作为文本特征序列,用此序列与水印信息运算生成一组注册码.实验结果表明,该算法实现简单,具有很好的不可见性和鲁棒性.
침대기우한자적문본감입비교곤난,수인불가견성불고,로봉성불고등특점,제출일충기우한자필화수적문본령수인신산법,산법통과통계각한자재문본중적사용빈솔,즉가득도사용빈솔최고적한자,사용빈솔최고한자적필화수작위문본특정서렬,용차서렬여수인신식운산생성일조주책마.실험결과표명,해산법실현간단,구유흔호적불가견성화로봉성.
Aiming at problems of difficult embedding of Chinese text digital watermarking, weak invisibility and weak robust-ness, this paper presents a novel Chinese zero-watermarking algorithm based on the number of strokes of Chinese characters. Through combining the frequency of use of Chinese characters in the text, the most frequently used Chinese characters can be got. This paper uses the number of strokes of the most frequently used Chinese characters as a sequence of the text feature, then generates a set of registration key using this sequence and the watermark information. This experiment result shows that the algo-rithm achieves simply and has good visibility and robustness.