一种对图像剪切具有鲁棒性的数字水印算法

A DIGITAL WATERMARKING ALGORITHM WITH ROBUST FOR IMAGE CROPPING

该文提出了一种新的基于DCT变换的图像数字水印嵌入和检测算法,该算法可以抵御图像剪切等几何袭击,且水印的检测不需原始图像,仿真结果证实了所提方法的有效性。

In this paper, a new algorithm of image watermark embedding and detecting based on DCT transform is presented. This method is robust to common signal and geometric distortions such as image cropping, and the embedded watermark can be detected without resorting to the uncorrupted original image. Experimental results support these claims.