Title :
Research on Information Hiding System Based on DCT Domain
Author :
Yuejun, Liu ; Jing, Su ; Feng, Liu
Author_Institution :
Sch. of Comput. & Inf. Eng., Anyang Normal Univ., Anyang, China
Abstract :
According to the analysis and research of theories of discrete cosine transform (DCT) and discrete wavelet transform (DWT), this paper puts forward an improved algorithm realizing digital image watermark embedding in the transform domain. On the basis of deeply understanding that the coefficient of a digital image after wavelet transform has correlation, it carries out DCT transform of the transformed digital image coefficient and then embeds digital watermarks, which makes the algorithm have the characteristics of the two transforms and strengthens the robustness of watermarking algorithm.
Keywords :
correlation theory; data encapsulation; discrete cosine transforms; discrete wavelet transforms; watermarking; DCT; correlation; digital image coefficient; digital image watermark embedding; discrete cosine transform; discrete wavelet transform; information hiding system; Algorithm design and analysis; Digital images; Discrete cosine transforms; Discrete wavelet transforms; Image analysis; Robustness; Watermarking; Wavelet analysis; Wavelet domain; Wavelet transforms; digital image; discrete wavelet transform; watermark;
Conference_Titel :
Computer Modeling and Simulation, 2010. ICCMS '10. Second International Conference on
Conference_Location :
Sanya, Hainan
Print_ISBN :
978-1-4244-5642-0
Electronic_ISBN :
978-1-4244-5643-7
DOI :
10.1109/ICCMS.2010.342
