DocumentCode :
396247
Title :
Robust digital image-in-image watermarking algorithm using the fast Hadamard transform
Author :
Ho, Anthony T S ; Shen, Jun ; Chow, Andrew K K ; Woon, Jerry
Author_Institution :
Sch. of Electr. & Electron. Eng., Nat. Technol. Univ., Singapore, Singapore
Volume :
3
fYear :
2003
fDate :
25-28 May 2003
Abstract :
In this paper, a robust and efficient digital image watermarking algorithm using the fast Hadamard transform (FHT) is proposed for the copyright protection of digital images. This algorithm can embed or hide an entire image or pattern as a watermark such as a company´s logo or trademark directly into the original image. The performance of the proposed algorithm is evaluated using Stirmark 3.1 that consists of 90 different types of image attacks. Results show that this algorithm is very robust and can survive most of the Stirmark attacks. These attacks were tested on a number of test images of size 512×512×8 bits, embedded with a watermark image of size 64×64×8 bits. The simplicity of the fast Hadamard transform also offers a significant advantage in shorter processing time and ease of hardware implementation than other orthogonal transforms, such as the discrete cosine transform and wavelet transform.
Keywords :
Hadamard transforms; copyright; image coding; security of data; telecommunication security; watermarking; 512 pixel; 64 pixel; 8 bit; FHT; Stirmark 3.1 image attacks; copyright protection; digital images; discrete cosine transform; embedded watermark image size; fast Hadamard transform; hardware implementation; orthogonal transforms; processing time; robust digital image-in-image watermarking algorithm; test images; trademark; watermark image pattern; wavelet transform; Containers; Copyright protection; Digital images; Discrete wavelet transforms; Frequency domain analysis; Hardware; Image coding; Robustness; Testing; Watermarking;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
Type :
conf
DOI :
10.1109/ISCAS.2003.1205147
Filename :
1205147
Link To Document :
بازگشت