【摘要】 几何变换攻击一直是许多数字图像水印的薄弱环节。即使是轻微的旋转、缩放、平移也将使得图像中的水印难以检测出来。本文中 ,我们提出了一种基于Fourier Mellin变换的新的盲水印算法 ,实验证明它对几何变换攻击具有较强的鲁棒性。更多还原

【Abstract】 For many digital image watermarks,geometric distortions are their weakness.Even slight rotation,scaling and translation of an image can prevent the detection of blind watermarks from it.In this paper,we present a novel blind watermark based on Fourier Mellin transform,which is robust to these common geometric distortions.更多还原