Title :
Digital Watetmarking Algorithm Using Two Dimensions Modulated Complex Lapped Transform
Author :
Zhang, Y. ; Shu, H.Z.
Author_Institution :
Dept. of. Comput. Sci. & Eng., Southeast Univ., Nanjing, China
Abstract :
Modulated complex lapped transform (MCLT) can reduce the artifacts brought by the block DCT. However, nearly all of these methods are mainly used for 1D signal. This paper defines 2D MCLT form and applies it in the field of watermarking. Experimental results show that the new method has better tradeoff between visual quality and robustness than some existing methods.
Keywords :
discrete cosine transforms; image coding; watermarking; block DCT; digital watermarking; discrete cosine transform; modulated complex lapped transform; visual quality; Computer science; Digital images; Digital modulation; Discrete Fourier transforms; Discrete cosine transforms; Discrete wavelet transforms; Filter bank; Frequency domain analysis; Image reconstruction; Watermarking; MCLT; artifacts; block DCT; tradeoff;
Conference_Titel :
Digital Image Processing, 2009 International Conference on
Conference_Location :
Bangkok
Print_ISBN :
978-0-7695-3565-4
DOI :
10.1109/ICDIP.2009.23
