DocumentCode
2629357
Title
A watermarking method based on optimizing SSIM index by using PSO in DCT domain
Author
Rohani, Mohsen ; Avanaki, Alireza Nasiri
Author_Institution
ECE Dept., Tehran Univ., Tehran, Iran
fYear
2009
fDate
20-21 Oct. 2009
Firstpage
418
Lastpage
422
Abstract
A watermarking method in DCT domain is modified to achieve better imperceptibility. Particle Swarm Optimization (PSO) is used to find the best DCT coefficients for embedding the watermark sequence and the Structural Similarity Index is used as the fitness function in order to have a watermarked image with the best possible quality.
Keywords
discrete cosine transforms; image coding; particle swarm optimisation; watermarking; DCT; PSO; fitness function; image watermarking method; particle swarm optimization; structural similarity index; Birds; Discrete cosine transforms; Humans; Image quality; Internet; Optimization methods; Particle swarm optimization; Signal processing; Visual system; Watermarking; Human Visual System; Image Watermarking; Particle Swarm Optimization; Structural Similarity Index;
fLanguage
English
Publisher
ieee
Conference_Titel
Computer Conference, 2009. CSICC 2009. 14th International CSI
Conference_Location
Tehran
Print_ISBN
978-1-4244-4261-4
Electronic_ISBN
978-1-4244-4262-1
Type
conf
DOI
10.1109/CSICC.2009.5349616
Filename
5349616
Link To Document