<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>With the rapid development of the Internet, more attention has been paid to information security and copyright issues in the network, and people's copyright awareness has gradually been set up. Based on signal processing and image processing, I have studied embedding digital watermark into DCT domain. Through people's copyright awareness has gradually been set up. The maintenance of copyright has become a hot topic, and the development of digital watermarking has solved this problem for people [<xref ref-type="bibr" rid="j_ijanmc-2021-033_ref_001">1</xref>]. Thus, watermarks are embedded in color images. Before I add watermark data, I scramble the watermark data. By contrast, the watermark algorithm embedded in the DC component of the RBG model is robust.</p>
<p>Based on signal processing and image processing, I have studied embedding digital watermark into DCT domain. Through people's copyright awareness has gradually been set up. The maintenance of copyright has become a hot topic, and the development of digital watermarking has solved this problem for people.. Thus, watermarks are embedded in color images. Before I add watermark data, I scramble the watermark data. By contrast, the watermark algorithm embedded in the DC component of the RBG model is robust.</p>
</abstract>

With the rapid development of the Internet, more attention has been paid to information security and copyright issues in the network, and people's copyright awareness has gradually been set up. Based on signal processing and image processing, I have studied embedding digital watermark into DCT domain. Through people's copyright awareness has gradually been set up. The maintenance of copyright has become a hot topic, and the development of digital watermarking has solved this problem for people [1]. Thus, watermarks are embedded in color images. Before I add watermark data, I scramble the watermark data. By contrast, the watermark algorithm embedded in the DC component of the RBG model is robust.
Based on signal processing and image processing, I have studied embedding digital watermark into DCT domain. Through people's copyright awareness has gradually been set up. The maintenance of copyright has become a hot topic, and the development of digital watermarking has solved this problem for people.. Thus, watermarks are embedded in color images. Before I add watermark data, I scramble the watermark data. By contrast, the watermark algorithm embedded in the DC component of the RBG model is robust.

Research on Digital Image Watermarking Algorithm in Frequency Domain Based on Matlab

International Journal of Advanced Network, Monitoring and Controls

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

With the rapid development of the Internet, more attention has been paid to information security and copyright issues in the network, and people's copyright...

Attack mode	Parameter	Normalized parameters	Signal to noise ratio (db)
unassailed	nothing	0.894375	38.424410
95%JPEG compress	95%	0.894085	38.293235
45%JPEG compress	45%	0.754401	35.026503
Gaussian noise	1/4	0.547445	20.157188
Salt and pepper noise	0.002	0.664663	21.999809
Rotate	2°	0.796050	23.123601
Rotate	95°	0.779734	19.440330
Shear	1/4	0.664663	11.225899

Research on Digital Image Watermarking Algorithm in Frequency Domain Based on Matlab

Pubblicato online: 21 mag 2023

Pagine: 32 - 43

DOI: https://doi.org/10.21307/ijanmc-2021-033

Parole chiave
DCT, Digital Watermarking, Color Image

© 2021 Wu Hejing, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1

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Watermark simulation related parameters

Research on Digital Image Watermarking Algorithm in Frequency Domain Based on Matlab

Pubblicato online: 21 mag 2023

Pagine: 32 - 43

DOI: https://doi.org/10.21307/ijanmc-2021-033

Parole chiaveDCT, Digital Watermarking, Color Image

© 2021 Wu Hejing, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Watermark simulation related parameters

Parole chiave
DCT, Digital Watermarking, Color Image