3. What is difference between following two watermarking syster Noise Watermark embedder Watermark detector Input message m Watermark encoder Wa Watermark decoder m, message Output Co Original cover Watermark key Co Watermark Original cover key work work Noise Watermark embedder Watermark detector Watermark encoder Wa Watermark Input message m Output m message Cw decoder Co Watermark Original cover key Watermark work key

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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3. What is difference between following two watermarking systems?
Noise
Watermark embedder
Watermark detector
Watermark
Input
message m
Watermark
encoder Wa
Output
Cw
Cwn
Wn
decoder mn message
Co
Co
Watermark Original cover
key
Original cover Watermark
work
work
key
Noise
Watermark embedder
Watermark detector
Watermark
encoder Wa
Watermark
Input
message m
Output
m message
decoder
Watermark Original cover
key
Watermark
work
key
Transcribed Image Text:3. What is difference between following two watermarking systems? Noise Watermark embedder Watermark detector Watermark Input message m Watermark encoder Wa Output Cw Cwn Wn decoder mn message Co Co Watermark Original cover key Original cover Watermark work work key Noise Watermark embedder Watermark detector Watermark encoder Wa Watermark Input message m Output m message decoder Watermark Original cover key Watermark work key
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