The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
As a new information hiding technology, digital watermarking attracted more and more attention in copyright protection. This paper proposed a DCT domain blind watermarking algorithm based on Arnold and quantification. Firstly we conduct Arnold chaotic scrambling to the watermarking before the embedding, to reduce the correlation between pixels and improve the security of the watermarking, then according...
There are limitations in smaller embedded information capacity, lower accurate rate for positioning embedded location and detection, slower running speed in traditional watermarking algorithm which combines spatial domain and transform domain based on characteristics of human visual system. A fast watermarking algorithm based on quantum evolutionary algorithm is proposed and implemented. We carry...
The reason why only small capacity information can be hidden in DCT domain of image is analyzed, a information hiding algorithm of high capacity for DCT domain is proposed. In our scheme, the uniform spectrum processing is first applied to the original image. Then, a global DCT transformation of the image is finished. Finally, the hidden information is embedded into low frequency DCT coefficients...
The causation that why the capacity of information hiding algorithm based on DCT domain is small is analyzed, a large capacity blind information hiding algorithm based on DCT domain is proposed. First, uniform spectrum processing act on the carrier image, then the image is processed globe DCT transform. Finally, the information, which is to be hidden, is embedded into the low frequency coefficients...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.