cse725. watermarking dates back in history. cryptography for protection. need of software for...
DESCRIPTION
Definition Imperceptible property Robustness Multiple watermarking (Discussed Later )TRANSCRIPT
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CSE725
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Watermarking dates back in History.
Cryptography for protection.
Need of software for ownership protection.
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Definition
Imperceptible property
Robustness
Multiple watermarking (Discussed Later )
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Information Embedded unit.
Info. Like owner, timestamp etc.
Watermark detection unit.
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Perceptual Analysis Information Spreading Watermark Generation Secret Key
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Detector provides binary output
Probability of detection and false alarm
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European project
Various agents involved
Main application e-commerce
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Entities involved.
Creation identification number.
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Creator Creator provider Distributor Rights holder Number issuer Purchaser Trusted third party Search agent
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Additive Noise Filtering Cropping Compression Rotation and Scaling Multiple watermarking.
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Video Watermarking Audio Watermarking Hardware/Software Watermarking Text Watermarking Executable watermarks Labeling
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Fingerprinting Copy and playback control
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Questions?