DocumentCode
3547545
Title
Shadow watermark embedding system
Author
Wang, Feng-Hsing ; Pan, Jeng-Shyang ; Jain, Lakhmi C.
Author_Institution
Sch. of Electr. & Inf. Eng., South Australia Univ., The Levels, SA, Australia
fYear
2005
fDate
23-26 May 2005
Firstpage
4975
Abstract
A new watermarking approach based on discrete cosine transform (DCT) for digital images is proposed. A reference image is established from the cover image using the user-key. Then, a shadow watermark is created from this reference image and the original watermark. The proposed scheme embeds this shadow watermark into the cover image in the DCT domain to secure the secret content of the original watermark. To reveal the real watermark, the correct keys are required.
Keywords
discrete cosine transforms; image coding; security of data; transform coding; watermarking; DCT domain; cover image; digital images; discrete cosine transform; reference image; shadow watermark embedding system; user-key; Discrete cosine transforms; Discrete wavelet transforms; Image coding; Image generation; Intelligent systems; Internet; Knowledge engineering; Quantization; Systems engineering and theory; Watermarking;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN
0-7803-8834-8
Type
conf
DOI
10.1109/ISCAS.2005.1465750
Filename
1465750
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