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
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;
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
DOI :
10.1109/CSICC.2009.5349616
