How to seperate LL subband in dwt

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Beginner in
Beginner in on 29 May 2015
Answered: B.k Sumedha on 29 May 2015
I am working on simple dwt2 command. I have shown the LL, LH, HL, HH subband in the figure. Now I need to work on LL subband. So how can I seperate LL out for its further processing

Answers (1)

B.k Sumedha
B.k Sumedha on 29 May 2015
[LL,LH,HL,HH] = dwt2(X,'db1'); % x is input image
figure;imshow(LL); % shows LL subband

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