Nirupma Tiwari

We don’t have enough information about this author to calculate their statistics. If you think this is an error let us know.
Learn More
Digital Multimedia contents like text, image, audio and video are widely used and are very easy to transmit over the Internet, and hence the copyright protection has been receiving and increasing attention these days. Other than copyright protection Digital Watermarking is now used for Digital Marketing and promotional Services. A Static Promotional media(More)
Digital watermarking is emerging as an effective technique to protect copyrights. The propose paper present a novel technique to protect digital data by embedding encrypted watermark. In this technique discrete wavelet transform is used to embed the watermark image. Each pixel value is encrypted by using stream cipher and the key used is same for encryption(More)
The objective of Digital Watermarking is to provide security in terms of information hiding and copyright protection. The researchers are continuously working to create robust digital image watermarking methods. In this paper proposed a novel technique for RGB digital watermarking based on 2-Discrete Cosine Transform (DCT) with discrete wavelet transform(More)
  • 1