• Shishank shrivastava
• Mahendra Kumar Pandey

Information security is extremely significant concern for the internet technology. As most of the data available in digital form, the multimedia owners need to protect their data from their unauthorized use. The protection of intellectual property rights has become increasingly important. These concerns over protecting copyright have triggered significant research to find ways to hide copyright messages and serial number into digital media. An important sub discipline of information hiding is Watermarking. Digital Watermarking is an authentication technique which permanently embeds a digital signal (watermark) in text, image, audio, video files (any Data) by slightly modifying the data but in such a way that there are no harmful effects on the data. In this paper, a review analysis of different watermarking techniques has been presented. Here, we elaborate the most important digital image watermarking methods and focus the merits and demerits of these techniques. Analysis has been exploring the performance efficiency of various digital image watermarking techniques that compared on the basis of outputs.

Digital Watermarking; Data Security; Discrete Cosine Transform; Discrete Wavelet Transform

"Overview of Digital Image watermarking with comparative analysis of different techniques", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.4, Issue 10, page no.398-402, October-2017, Available :http://www.jetir.org/papers/JETIR1710064.pdf

"Overview of Digital Image watermarking with comparative analysis of different techniques", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.4, Issue 10, page no. pp398-402, October-2017, Available at : http://www.jetir.org/papers/JETIR1710064.pdf