DocumentCode :
1858926
Title :
A real time watermarking of grayscale images without altering it´s content
Author :
Sakthivel, S.M. ; Sankar, Ravi A.
Author_Institution :
SENSE, VIT Univ., Chennai, India
fYear :
2015
fDate :
8-10 Jan. 2015
Firstpage :
1
Lastpage :
6
Abstract :
This paper proposes a new spatial domain watermarking of grayscale images and has also shown its VLSI Implementation without altering its content in real time using a secret key. The secret key is generated by searching the watermark pixel values in host image content and the location maps are marked in secret key. Therefore this algorithm is called PVSA- Pixel Value Search Algorithm. The proposed algorithm does not make any change in the host image. Thus it shows high robustness to signal processing attacks. The watermark extraction process is simple as the host content is extracted based on key. We have evaluated the robustness of the algorithm against several signal processing attacks using MATLAB. Finally we have implemented the same algorithm in verilog HDL using Altera Quartus-II.
Keywords :
VLSI; hardware description languages; image watermarking; real-time systems; search problems; Altera Quartus-II; MATLAB; PVSA; VLSI Implementation; grayscale images; host image content; location maps; pixel value search algorithm; real time watermarking; secret key; signal processing attacks; verilog HDL; watermark extraction process; watermark pixel values; Biomedical imaging; Hardware design languages; Lead; Noise; Random access memory; Robustness; Watermarking; Pixel value searching; Real Time Watermarking; Spatial domain;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
VLSI Systems, Architecture, Technology and Applications (VLSI-SATA), 2015 International Conference on
Conference_Location :
Bangalore
Print_ISBN :
978-1-4799-7925-7
Type :
conf
DOI :
10.1109/VLSI-SATA.2015.7050469
Filename :
7050469
Link To Document :
بازگشت