Novel DCT and DWT based Watermarking Techniques for Digital Images
- Shikha TripathiR. JainV. Gayatri
- 20 August 2006
Computer Science
Two digital image watermarking techniques that have higher level of security compared to most of the existing algorithms have been proposed and it has been shown that instead of adding the watermark to the source image, multiplying the water mark with the transformed source could be a preferred technique, as it would retain the original bit rate to a large extent.