Title :
A New Watermarking Image Optimization Method Based on Cort and DCT
Author_Institution :
Dept. of Sci. & Culture, Nanchang Mil. Coll., Nanchang, China
Abstract :
In this paper, we propose a optimization method of watermarking image based on Cort and DCT. Exploiting human visual system characteristics, our method dynamically chooses the appropriate coefficients of the intermediate frequency and watermarked locations according to different image. Experiments show that the watermarking algorithm performs well in robustness and watermarking imperceptibility.
Keywords :
optimisation; watermarking; Cort; DCT; human visual system characteristics; intermediate frequency; optimization method; watermarked locations; watermarking algorithm; watermarking image optimization; watermarking imperceptibility; Discrete cosine transforms; Filtering; Frequency; Humans; Image coding; Low pass filters; Optimization methods; Robustness; Signal processing algorithms; Watermarking; Cort; DCT; digital watermarking;
Conference_Titel :
Management of e-Commerce and e-Government, 2009. ICMECG '09. International Conference on
Conference_Location :
Nanchang
Print_ISBN :
978-0-7695-3778-8
DOI :
10.1109/ICMeCG.2009.73
