Copyright watermark generator: free download. On-line document store on 5y1.org

[DOC File]Chapter 1 - Digital Watermark Survey and Classification
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Sometimes a content generator wishes to make known that an image is copyrighted and yet does not want to interfere with the total perceptibility. As shown in [5], a watermark can be automatically inserted in an image as noise and utilize the perception masking capabilities of the human eye to make this watermark just barely visible.
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[DOC File]Digital rights management for digital cinema
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Watermarks are generated using a pseudo-random bit generator initiated using a secret key of the copyright owner. Watermark magnitude is set based on the sensitivity of H.P.S. to amplitude changes. A correlation detector performs the test for the presence of the watermark:
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[DOC File]Digital watermark is a perceptually transparent pattern ...
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Digital watermark is a perceptually transparent pattern(i) embedded in an image using an embedding algorithm and a secret key. The purpose of the watermark is to supply some additional information about the image without visibly modifying the image (compare with date and time imprinting on negatives) or without the need to change the file format.
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[DOC File]Watermarks, fingerprints, and digital signatures
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An improvement to this is to use a secret key, shared by the sender and recipient (in this context, the sender may be the copyright owner, and the recipient the watermark detector mechanism). The key is used to generate a pseudo random keystream that in turn is used to select pixels or sound samples that will carry the embedded mark [8].
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IEEE Paper Template in A4 (V1)
Watermark images are scrambled using Arnold scrambling method where the key for each frame is different generated from a secure PSRG (Pseudo random generator) in order to …
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Copyright watermark generator