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What are the different types of watermarking?
visible watermarking and invisible watermarking
Want to draw data flow diagram for your project watermarking?
give the data flow diagram for project watermarking
What are the DCT DWT watermarking techniques Explain it from its roots?
DWT has excellent frequency spread, spatial localization and multi-resolution characteristics. DCT offer compression while DWT offers scalability in watermarking. These techniques and properties are used in a combined DCT DWT watermarking technique.
Is watermarking related to information security on the Internet?
Yes.
How do you watermark an image in MATLAB?
A sigital Watermarking example in Matlab is in related links.
What has the author Karen Su written?
Karen Su has written: 'Digital video watermarking principles for resistance to collusion and interpolation attacks'
What is multipurpose watermarking?
The rapid growth of digital multimedia and Internet technologies has made copyright protection, copy protection, and integrity verification three important issues in the digital world. To solve these problems, the digital watermarking technique has been presented and widely researched. Traditional watermarking algorithms are mostly based on discrete transform domains, such as the discrete cosine transform, discrete Fourier transform (DFT), and discrete wavelet transform (DWT). Most of these algorithms are good for only one purpose. Recently, some multipurpose digital watermarking methods have been presented, which can achieve the goal of content authentication and copyright protection simultaneously. However, they are based on DWT or DFT. Lately, several robust watermarking schemes based on vector quantization (VQ) have been presented, but they can only be used for copyright protection. In this paper, we present a novel multipurpose digital image watermarking method based on the multistage vector quantizer structure, which can be applied to image authentication and copyright protection. In the proposed method, the semi-fragile watermark and the robust watermark are embedded in different VQ stages using different techniques, and both of them can be extracted without the original image. Simulation results demonstrate the effectiveness of our algorithm in terms of robustness and fragility.
What is the difference between stegenography and watermarking?
Stegenography is the act of adding a hidden message to an image or other media file. It is similar to encrypting a document, but instead of running it through a cypher, the document is broken up and stored in unused, or unnoticable, bits within the overall image. Watermarking is similar, but has a completely different purpose. Placing a watermark in an image or other media file serves to identify the artist or author of the work. It isn't so much an attempt to hide a message as it is to tag a document for later identification. Watermarking is used to protect the copyright of the original owner, to make their claim stronger, should the image be used without permission by someone else.
When was The Blind Leading the Blind created?
The Blind Leading the Blind was created in 1568.
Was the five blind boys born blind?
yes the five blind boys of Mississippi was born blind
What is integral invariant algorithm in peer to peer watermarking?
they fcuk their nans up the bum for 27 pence then they go and buy stuff on eBay that is 26p so that theyhave 1 pence change
How old was blind fury when he become blind?
He was born blind
