CAJ | 학술논문

为了有效地保护数字媒体的版权,提出了一种基于小波的自适用量化的水印算法,使水印算法能确定水印的最优嵌入能量来量化小波系数,实现了水印不可感执行和鲁棒性之间的折衷,同时,水印的提取无须求助于原图像,很好地实现了水印的盲检测.实验结果和攻击测试表明,提出的算法对JPEG/JPEG2000压缩、添加噪声、剪切、亚抽样、低通滤波等多种攻击有较强的鲁棒性.
위료유효지보호수자매체적판권,제출료일충기우소파적자괄용양화적수인산법,사수인산법능학정수인적최우감입능량래양화소파계수,실현료수인불가감집행화로봉성지간적절충,동시,수인적제취무수구조우원도상,흔호지실현료수인적맹검측.실험결과화공격측시표명,제출적산법대JPEG/JPEG2000압축、첨가조성、전절、아추양、저통려파등다충공격유교강적로봉성.
Digital media copyright can be protected with a novel wavelet adaptive quantization algorithm for digital image watermarking.We can determine the best energy or capacity to be added to the original image.Experiments and attack test have showed that the algorithm has good robustness on JPEG/JPG2000,additive noise,median filter,sub-sampling,gaussian low pass filter etc.