image enhancement using dwt

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Faridah
Faridah 2018 年 2 月 11 日
iam doing image enhancement using dwt. the code below is dwt for decompose n reconstruction. how do i do the enhancement? should i put thresholding function after decomposition?
[cA,cH,cV,cD] = dwt2(Green_Input_Image,'db4');
sX = size(Green_Input_Image);
A0 = idwt2(cA,cH,cV,cD,'db4',sX);
please help me, iam really stuck to do image enhancement using dwt

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