A New Watermarking Scheme Based on Combination of DCT-DWT-SVD
Keywords:
Digital water marking; Singular vector decomposition; YCbCrAbstract
The validation of images taken by digital cameras has become a great concern as the digital photography is
gaining rapid popularity. So, due to lack of protection of digital content as they can be easily duplicated and
disseminated without the owner’s consent , publishers, artists, and photographers, however, are unwilling to distribute
images or other data over the Internet. Therefore, to protect confidential images we propose an efficient digital
watermarking technique to deal with this difficult issue. In the proposed technique, the image is first converted into
YCbCr from RGB domain then watermark is embedded in Y component of YCbCr using Discrete Wavelet Transform
,Discrete cosine Transform and Singular Value Decomposition (SVD). The results show that our algorithm is resistant
toward various attacks.
