Wavelet-based histogram equalization enh
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J.C. Fu; H.C. Lien; S.T.C. Wong
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Article
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2000
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Elsevier Science
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English
โ 460 KB
The gray levels of gastric sonogram images are usually concentrated at the zero end of the spectrum, making the image too low in contrast and too dark for the naked eye. Though histogram equalization can enhance the contrast by redistributing the gray levels, it has the drawback that it reduces the