Title :
A new method for digital watermarking based on combination of DCT and PCA
Author :
Saboori, Arash ; Hosseini, S. Abolfazl
Author_Institution :
Dept. of Commun., Islamic Azad Univ., Tehran, Iran
Abstract :
In the digital watermarking with DCT method, the watermark is located within a range of DCT coefficients of the cover image. In this paper to use the low-frequency band, a new method is proposed by using a combination of the DCT and PCA transform. The proposed method is compared to other DCT methods, our method is robust and keeps the quality of cover image, also increases capacity of the watermarking.
Keywords :
discrete cosine transforms; image watermarking; principal component analysis; DCT method; PCA transform; digital watermarking; discrete cosine transform; principal component analysis; DCT; Digital watermarking; PCA transform; low-frequency band; middle-frequency band;
Conference_Titel :
Telecommunications Forum Telfor (TELFOR), 2014 22nd
Conference_Location :
Belgrade
Print_ISBN :
978-1-4799-6190-0
DOI :
10.1109/TELFOR.2014.7034461
