DocumentCode
3059568
Title
Watermarking Scheme Based on DCT and DHT
Author
Zhou, Jianqin ; He, Lingyun ; Shangguan, Cheng
Author_Institution
Telecommun. Sch., Hangzhou Dianzi Univ., Hangzhou, China
Volume
1
fYear
2009
fDate
22-24 May 2009
Firstpage
223
Lastpage
227
Abstract
A new watermarking scheme based on DCT and DHT is presented. First,the host image is transformed as a whole by DCT. Second, the low and middle frequency region of the coefficient matrix is transformed by DHT. At last the watermarking image is embedded into the region of the DHT coefficient block. The experimental results show that the scheme is easy to be realized and the embedded watermark is effectively robust against various image processing operations such as JPEG lossy compression, noise, cropping, scaling, filtering etc.
Keywords
discrete Hartley transforms; discrete cosine transforms; image coding; watermarking; DCT transform; JPEG; discrete Hartley transform; image processing operations; image watermarking scheme; lossy compression; Copyright protection; Data mining; Discrete Fourier transforms; Discrete cosine transforms; Discrete transforms; Frequency; Image coding; Image processing; Noise robustness; Watermarking; DCT; DHT; Information hiding; digital watermarking; robustness;
fLanguage
English
Publisher
ieee
Conference_Titel
Electronic Commerce and Security, 2009. ISECS '09. Second International Symposium on
Conference_Location
Nanchang
Print_ISBN
978-0-7695-3643-9
Type
conf
DOI
10.1109/ISECS.2009.259
Filename
5209905
Link To Document