Undecimated Wavelet Transform Based Contrast Enhancement
نویسندگان
چکیده
A novel undecimated wavelet transform based contrast enhancement algorithmisproposed to for both gray scale andcolor images. Contrast enhancement is realized by tuning the magnitude of approximation coefficients at each level with respect to the approximation coefficients of one higher level during the inverse transform phase in a center/surround enhancement sense.The performance of the proposed algorithm is evaluated using a statistical visual contrast measure (VCM). Experimental results on the proposed algorithm show improvement in terms of the VCM. Keywords—Image enhancement, local contrast enhancement, visual contrast measure.
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