… One can use the semi-fragile watermarking for copyright and authentication of medical
images. In this case while using robust watermarks we are much concerned with the image …

… coefficients for watermark correlation and embedding. In this work, we develop two watermarks
to be … Firstly a binary watermark is used to accurately authenticate the content as well as …

… Now a day the researchers have proposed number of watermarking techniques that can
protect the content as well as recover it if the content is distorted. There are two ways to …

… For the procedure of watermark extraction and content authentication, if the ith speech … ,
the corresponding reconstructed watermark will be different from the extracted watermark, so we …

… , data security and content authentication of multimedia … of by embedding a robust watermark
using an efficient inter-… the original watermark is said to be completely recovered. Some of …

… the digital image, for the purpose of content authentication and original content recovery. …
1, we embed a reversible watermark in a digital image I, and obtain the watermarked image I…

… Here, the watermark was embedded, twice, into two different locations in the host to obtain a
… image authentication with self-recovery capability. The watermark data for content recovery …

… A content authentication and tamper recovery scheme for … , a tamper recovery scheme
based on digital watermark is … method for digital speech signals based on discrete cosine …

… for image content authentication with localization and recovery capability … based on QIM
dither modulation in the IWT domain, in which authentication watermark and recovery watermark …

… authenticating digital contents … watermark called recovery watermark, is computed through
the properly modified version of the compressed original image. The authentication watermark …