基于可信赖第三方的鲁棒性的图像水印方案

图像水印技术主要是用来保护图像的版权。提出了一个鲁棒性的基于可信赖第三方的图像水印方案，这种方法有两大优点。方案中的水印和原图像是同一种类型，例如灰度级图像。方案满足水印技术的要求。由于引入了可信赖第三方，用户无法觉察和破坏图像中的水印。它能够抵抗各种图像改变算法的攻击，包括滤波、有损压缩和旋转等。

A robust image watermarking scheme based on a trusted third party

Image watermarking techniques are mainly used for image copyright protection. A robust image watermarking scheme based on a trusted third party is proposed. The method has two main virtues. First, the watermark used in the proposed scheme is the same type as the original image, e.g. gray level images. Second, the proposed scheme meets the requirements for wat-ermarking techniques. Because a trusted third party is introduced, users can't perceive or break the watermark from the image. Moreover, the watermark is robust against attacks by various image altering algorithms, such as filtering, lossy compression, rotation etc.