Research Article

Improving Image Quality in Medical Images Using a Combined Method of Undecimated Wavelet Transform and Wavelet Coefficient Mapping

Figure 5

Image processing results for chest radiographs. (a) Image processed by the proposed method, (b) image processed by the modified UDWT method, and (c) image processed by the sigmoid-type wavelet coefficient mapping method.
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(a)
797924.fig.005b
(b)
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(c)