Nonlinear Sciences – Chaotic Dynamics
Scientific paper
2010-12-30
Nonlinear Sciences
Chaotic Dynamics
33 pages, 10 figures, 7 tables, written with double spacing and larger font
Scientific paper
An algorithm is proposed for the segmentation of image into multiple levels using mean and standard deviation in the wavelet domain. The procedure provides for variable size segmentation with bigger block size around the mean, and having smaller blocks at the ends of histogram plot of each horizontal, vertical and diagonal components, while for the approximation component it provides for finer block size around the mean, and larger blocks at the ends of histogram plot coefficients. It is found that the proposed algorithm has significantly less time complexity, achieves superior PSNR and Structural Similarity Measurement Index as compared to similar space domain algorithms[1]. In the process it highlights finer image structures not perceptible in the original image. It is worth emphasizing that after the segmentation only 16 (at threshold level 3) wavelet coefficients captures the significant variation of image.
Katiyar Prateek
Panigrahi Prasanta K.
Singha Satish K.
Srivastava Madhur
Yashu Yashwant
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