Digital Image Watermarking Using 3 level Discrete Wavelet Transform
Pratibha Sharma, Shanti Swami
Available Online April 2013.
- In this paper a digital image watermarking based on 3 level discrete wavelet transform (DWT) is presented & compare it with 1 & 2 levels DWT. In this technique a multi-bit watermark is embedded into the low frequency sub-band of a cover image by using alpha blending technique. During embedding, watermark image is dispersed within the original image depending upon the scaling factor of alpha blending technique. Extraction of the watermark image is done by using same scaling factor as for embedding. Performance of method for different value of scaling factor is analyses & compare with 1& 2 levels DWT method by using statistical parameters such as peak- signal-to-noise-ratio (PSNR) and mean square error (MSE).Keywords: List four to six keywords which characterize the article.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Pratibha Sharma AU - Shanti Swami PY - 2013/04 DA - 2013/04 TI - Digital Image Watermarking Using 3 level Discrete Wavelet Transform PB - Atlantis Press SP - 129 EP - 133 SN - 1951-6851 UR - https://www.atlantis-press.com/article/6291 ID - Sharma2013/04 ER -