CAJ | 학술논문

提出一种基于小波变换进行水印检测的数字图像水印方案。在抵挡图像攻击，增加消除水印难度的同时，如何在变换域中把含有明显图像能量的水印图像添加到变换系数中是十分重要。在过去的数字图像水印检测过程中，由于我们所选定的参数位置会随着图像处理的变化而变化，参数位置和图像相对变化彼此有关联性，当采取使用原始图像方法的时候，我们无法有选择地将水印添加到指定明显参数中。水印检测响应对水印参数存放的相对顺序变化极其敏感，在此基础上，本文提出了一种基于小波变换的图像水印方法。这种方法增强了数字水印的防消除性能，使检测水印具有更好的鲁棒性。
제출일충기우소파변환진행수인검측적수자도상수인방안。재저당도상공격，증가소제수인난도적동시，여하재변환역중파함유명현도상능량적수인도상첨가도변환계수중시십분중요。재과거적수자도상수인검측과정중，유우아문소선정적삼수위치회수착도상처리적변화이변화，삼수위치화도상상대변화피차유관련성，당채취사용원시도상방법적시후，아문무법유선택지장수인첨가도지정명현삼수중。수인검측향응대수인삼수존방적상대순서변화겁기민감，재차기출상，본문제출료일충기우소파변환적도상수인방법。저충방법증강료수자수인적방소제성능，사검측수인구유경호적로봉성。
In this paper, a digital image watermarking scheme based on wavelet transform for watermark detection is presented. In order to increase the difficulty of howing to remove the watermark, the transform coefficients in transform domain image watermarking with obvious added energy is very important.Before the detection process the method is ad-opted without using the original image which cannot selectively watermark is added to the significant parameters because the selected parameters will change position with the image processing. Because the watermark detection are extremely sensitive with the relative order of watermark storage parameters, a method based on wavelet transform is proposed. The advantages of this method are enhanced watermark and eliminate performance, and the detection of the watermark has better robustness.