Performance Analysis of Compression Techniques for Multimedia Data

2019 ◽  
pp. 243-256 ◽  
Author(s):  
Anupama S. Budhewar ◽  
Dharmpal D. Doye
Keyword(s):  
Performance Analysis ◽  
Multimedia Data

Dual Scrambled Image Watermarking Algorithm in DWT-SVD Composite Domain

2017 ◽  
pp. 30-42 ◽  
Author(s):  
Dharm Singh ◽  
Madhuri Agarwal ◽  
Charu Singh
Keyword(s):  
Performance Analysis ◽  
Copyright Protection ◽  
Image Watermarking ◽  
Singular Values ◽  
Extraction Process ◽  
Scaling Factor ◽  
Multimedia Data ◽  
Copyright Violation ◽  
Increased Risk ◽  
Security Levels

There is an increased risk of copyright violation of multimedia data due to the enormous growth of computer networks that provides fast and error free transmission of any multimedia information. A copyright identifier that may contain some information about the lawful owner is inserted in the contents of the image, without sacrificing its quality. The security levels are increased by using a key value and scaling factor for the embedding and extraction process. The dual scrambled watermark using Arnold and Scrambling sequence is embedded by modifying the singular values of the scrambled cover image's DWT middle frequency sub-band. The simulation was performed on MATLAB 7.7.0 with standard database gray scale images of size 512x512 and watermark of size 64x64 using hybrid dual scrambled watermark schemes. The performance analysis is done on the basis of the degree of scrambling and JPEG compression attack using various parameters. The proposed method achieves better imperceptibility and security for the copyright protection methods.

Modeling and performance analysis for multimedia data flows scheduling in software defined networks

2017 ◽  
Vol 83 ◽  
pp. 89-100 ◽  
Author(s):  
Jun Huang ◽  
Liqian Xu ◽  
Qiang Duan ◽  
Cong-cong Xing ◽  
Jiangtao Luo ◽  
...  
Keyword(s):  
Performance Analysis ◽  
Multimedia Data ◽  
Software Defined Networks ◽  
Data Flows ◽  
And Performance
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