Title :
A cascade DWT-DCT based digital watermarking scheme
Author :
Emek, Serkan ; Pazarci, Melih
Author_Institution :
FBE Elektron. ve Haberlesme Muh., YTU, Istanbul, Turkey
Abstract :
Many watermark algorithms exist for the frequency domain using either the DCT or the DWT. In this paper, we propose a new watermark algorithm using the DWT prior to the DCT to provide better imperceptibility in harmony with the human visual system, and higher robustness against signal processing attacks. Experimental evaluations show that the technique performs well.
Keywords :
discrete cosine transforms; discrete wavelet transforms; frequency-domain analysis; signal processing; video watermarking; better imperceptibility; cascade DWT-DCT; digital watermarking scheme; discrete cosine transforms; discrete wavelet transform; frequency-domain analysis; higher robustness; human visual system; mpeg video sequences; signal processing attacks; Digital images; Discrete cosine transforms; Discrete wavelet transforms; Frequency-domain analysis; Image processing; Robustness; Watermarking;
Conference_Titel :
Signal Processing Conference, 2005 13th European
Conference_Location :
Antalya
Print_ISBN :
978-160-4238-21-1
