Question

Provide examples of the following:

1-The Stakes Behind Watermarking Security

2-Watermarking Constraints

3-Zero-Bit and Multi-bit Watermarking

4-A Processing View

5-The Geometrical View

6-Spread Spectrum and Improved Spread Spectrum

Answer 1

1.

STAKES BEHIND WATERMARKING SECURITY:

Main aim of seccurity is

• deterrent
• protection
• detection.

the detection field with the digital watermarking scheme becomesthe mainstream of research due to its high ability of detectionand traceability. Many IPP techniques in the detection methodhave been proposed and most of them focus on the constraint-based watermarking.

3.

ZERO BIT:

In Zero bit Watermarking,need to distinguish watermarked with non water marked content .

It doesn't have decoding so it doesnt hide any message.

It just embeds and detects the mark.

MULTI BIT:

In MULTI bit Watermarking,need to distinguish watermarked with non water marked content .

It have decoding so it hides a message.

It is readable content .