饱和检测器在数字水印方案中的应用

Application of Saturating Detector to Watermarking Scheme

本文利用饱和检测器在离散余弦变换(DCT)域水印方案中进行水印检测。饱和检测器无须事先了解原始图像和水印,实现盲水印检测。在加入噪声、滤波以及压缩图片中进行水印检测,体现出了算法的鲁棒性。

The present paper proposes a discrete cosine transform domain watermarking scheme by exploiting saturating detectors in the design of a watermark detecting process. The copyright character can be extracted by this saturating detector without prior knowledge of the original image and watermark, i.e. blind watermark detection. Robustness of the proposed watermarking scheme is shown in the presence of noise, filtering, and compression.