CAJ | 학술논문

在互联网飞速发展的信息时代，网络已经成为人们生活中重要的资源库也是用于交流的重要枢纽，各种资源、信息都可以通过网络平台以压缩的形式传输。为了确保信息安全，如何在压缩文件中嵌入水印以及在传输过程中完整的保留水印的问题急需解决。为此本文利用MATLAB语言开发了基于HVS的数字水印系统，与已往的空域或变换域的水印算法不同，结合本文提出的双位嵌入法，把水印嵌入到了压缩域。通过实验仿真，结果表明这种新的水印方案与现有的水印嵌入法相比更具有抵御水印攻击力，而且更好保证了水印嵌入的鲁棒性和满足了视觉阈值效应。尤其适合用于剪切、滤波、噪声和压缩等领域的水印嵌入，从而保护这些领域的信息安全。
재호련망비속발전적신식시대，망락이경성위인문생활중중요적자원고야시용우교류적중요추뉴，각충자원、신식도가이통과망락평태이압축적형식전수。위료학보신식안전，여하재압축문건중감입수인이급재전수과정중완정적보류수인적문제급수해결。위차본문이용MATLAB어언개발료기우HVS적수자수인계통，여이왕적공역혹변환역적수인산법불동，결합본문제출적쌍위감입법，파수인감입도료압축역。통과실험방진，결과표명저충신적수인방안여현유적수인감입법상비경구유저어수인공격력，이차경호보증료수인감입적로봉성화만족료시각역치효응。우기괄합용우전절、려파、조성화압축등영역적수인감입，종이보호저사영역적신식안전。
Along with the rapid development of computer and network technology ,the digital product transmission is more and more frequent on the network .And it mostly transfers in compressed form .So how to ensure that digital wa‐termarking is not erased in network transmission has become a pressing problem .A digital watermark system based on HVS is developed using MATLAB in this paper .It is different from the past system based on watermarking algorithm of spatial or transform domain ,the system combined with the method of double bits is proposed in this paper ,and the wa‐termark was embedded in the compressed domain .Through simulation experiments ,the results show that the water‐marking embedding scheme proposed here has good robustness for shearing ,filtering ,noise and compression .