图像小波域的鲁棒隐形水印算法

A Robust Invisible Image Watermarking Algorithm Based on Wavelet Transform

提出一种小波域透明图像水印算法,算法将一个二值图像内嵌到原始图像经过小波多分辨率分解后的低频子带上,并利用人眼视觉掩蔽特性对水印的添加强度进行自适应调节以增强水印的鲁棒性和保证水印的不可感知性。实验结果表明:该算法较好地保持了图像的 质量,并且对常用的图像处理有较强的稳健性。

This paper proposes an approach for transparent image watermarking based on wavelet multiresolution decomposition in which a binary image is embedded in the original image. The method uses the characterastic of Human Visual System(HVS) to enhance the robustness of the watermark and avoids the perceptibility of human eyes.Experimental results show that this algorithm produces a better image quality and delivers a stable performance in image processing.