Abstract
A new contrast enhancement algorithm for image is proposed with simulated annealing algorithm (SA) and wavelet neural network (WNN). In-complete Beta transform (IBT) is used to obtain non-linear gray transform curve. Transform parameters are determined by SA to obtain optimal gray transform parameters. In order to avoid the expensive time for traditional contrast enhancement algorithms, which search optimal gray transform parameters in the whole parameters space, a new criterion is proposed. Contrast type for original image is determined employing the new criterion. Parameters space is given respectively according to different contrast types, which shrinks parameters space greatly. Thus searching direction and selection of initial values of SA is guided by the new parameter space. In order to calculate IBT in the whole image, a kind of WNN is proposed to approximate the IBT. Experimental results show that the new algorithm is able to adaptively enhance the contrast for image well.
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© 2005 Springer-Verlag Berlin Heidelberg
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Zhang, C., Wang, X., Zhang, H. (2005). Contrast Enhancement for Image with Simulated Annealing Algorithm and Wavelet Neural Network. In: Wang, J., Liao, XF., Yi, Z. (eds) Advances in Neural Networks – ISNN 2005. ISNN 2005. Lecture Notes in Computer Science, vol 3497. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11427445_114
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DOI: https://doi.org/10.1007/11427445_114
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-25913-8
Online ISBN: 978-3-540-32067-8
eBook Packages: Computer ScienceComputer Science (R0)