提出了一种离散小波变换域实现图像水印的方法。这种算法充分利用小波变换的特点,把原始图像及水印图像塔式分解,在多分辨率分解后的相同的频段来嵌入水印信息。该方法也利用了人眼视觉特性,算法简单而有效。实验证明,该算法较好地解决了水印不可见性与鲁棒性之间的矛盾,对常见的水印攻击都有较强的鲁棒性。-presents a discrete wavelet transform domain image watermarking method. This algorithm using wavelet tran

visible watermarking of two images using DTC is given in this file.PSNR of watermarked image is also calulated along with coreletion factor-visible watermarking of two images using DTC is given in this file.PSNR of watermarked image is also calulated

The increasing amount of applications using digital multimedia technologies has accentuated the need to provide copyright protection to multimedia data. Digital watermarking is a method that has received a lot of attention in the past few years. A di

it ll help u in visible watermarking of images