Secured watermarking image using spread spectrum
Other Title(s)
العلامة المائية السرية للصور باستخدام انتشار الطيف
Author
Source
Tikrit Journal of Engineering Sciences
Issue
Vol. 23, Issue 3 (30 Sep. 2016), pp.71-78, 8 p.
Publisher
Tikrit University Colleg of Engineering
Publication Date
2016-09-30
Country of Publication
Iraq
No. of Pages
8
Main Subjects
Information Technology and Computer Science
Abstract EN
Due to the increased development in technique of data transfer over internet and transmission media, the access and copy to these data in unathentical manner became a big challenge in the transmission media.
This challenge led to make effort in digital multimedia security.
In this paper a new algorithm is proposed to protect image from unauthentication access using watermarking.
The watermarking algorithm hide the mark image in frequency domain using Discrete Cosine Transform and extract it at the receiver from the transmitted image without need for origin image.
The basic principle of the algorithm is depend on spread spectrum commun ications.
The spread spectrum depend on transmit a narrow band signal over a much larger bandwidth where that the signal energy is undetectable.
Similarly, the watermark image bits are spread by a large factor called chip-rate so that it is imperceptible and arrange in cover image in away where if the half of the watermarked image is cropped, the watermark image is not affected.
The proposed algorithm efficiency is measured by using many of measurement factors such as Peak Signal to Noise Ratio PSNR and Normalized Correlation Coefficient NC, the watermark robustness and feasibility are measured by using many types of attacks.
American Psychological Association (APA)
Salih, Abd al-Karim Muhammad. 2016. Secured watermarking image using spread spectrum. Tikrit Journal of Engineering Sciences،Vol. 23, no. 3, pp.71-78.
https://search.emarefa.net/detail/BIM-946116
Modern Language Association (MLA)
Salih, Abd al-Karim Muhammad. Secured watermarking image using spread spectrum. Tikrit Journal of Engineering Sciences Vol. 23, no. 3 (2016), pp.71-78.
https://search.emarefa.net/detail/BIM-946116
American Medical Association (AMA)
Salih, Abd al-Karim Muhammad. Secured watermarking image using spread spectrum. Tikrit Journal of Engineering Sciences. 2016. Vol. 23, no. 3, pp.71-78.
https://search.emarefa.net/detail/BIM-946116
Data Type
Journal Articles
Language
English
Notes
Record ID
BIM-946116