Contrast-Adaptive Removable Visible Watermarking (CARVW) mechanism ?
The transparency of the watermark is applicable to the various host images. The browsers can recognize the watermark, and the host image is not seriously obscured. The new scheme can remove the embedded watermark from the watermarked image. The PSNR values of the various restored images are around 56dB after the visible watermark has been removed.
contrast-adaptive visible watermark transparency restoration copyright protection