%0 Journal Article
%T A Review of Different Techniques on Digital Image Watermarking Scheme
%A Y. Shantikumar Singh
%A Kh. Manglem Singh
%A B. Pushpa Dev
%J International Journal of Engineering Research
%V 2
%N 3
%P 193-199
%D 2014
%I IJER
%X In this paper we aim to present a survey of different 
techniques on digital image watermarking. Digital watermarking 
technique is becoming more important in this developing society of 
internet. Digital watermarking is used as a key solution to make the 
data transferring secure from illegal interferences. Digital 
watermark techniques are used in various areas such as copyright 
protection, broadcast monitoring and owner identification. In this 
paper we mainly discussed about two methods via spatial domain 
and frequency domain. In spatial (pixel) domain, watermark is 
inserted directly by modifying the pixel values of host image. Such 
algorithms are very easy at the time of implementation. However 
they have some problems like Low hiding capacity of watermark 
information, less PSNR, less correlation between original and 
extracted watermark and less security, so anyone can detect such 
algorithms. In frequency domain such as DCT, DFT, DWT, SVD 
etc, the watermark is inserted into transformed coefficients of image 
giving more information hiding capacity and more robustness 
against watermarking attacks because information can be spread 
out to entire image.
%K Digital Image Watermarking
%K DCT
%K DWT
%K SVD
%U http://www.ijer.in/ijer/publication/v2s3/IJER_2013_303.pdf