数字水印对抗几何攻击方法的研究膏净，台莉春，张志请(同济大学计算机科学与工程系，上海200092)搞蔓：提出了一种新的基于图像原点矩的几何变换参数估计算法，经实验验证它能有效地估计图像的旋转角度和尺度缩放参数，利用这些参数可以对被测水印化载体图像进行相应校正和水印检测。-confrontation geometric digital watermarking method of attack paste net, Taiwan-Li-chun, Zhang requested (Tongji University Department of Computer Science and Engineering, Shanghai 200092) engage vines : presents a new image based on the geometric origin moment transform parameter estimation algorithm, Experiments showed it can effectively estimate the image rotation and scaling parameters. use these parameters can be measured on the carrier watermark image corresponding watermark detection and correction.