DWT

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kush
kush le 23 Mar 2012
i am working on dwt2 with mode as 'db2' problem i am facing is that size of cA is not exactly half of image used,which create problem in further part if anyone knows plz help

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Wayne King
Wayne King le 23 Mar 2012
Hi Kush, that is because the default extension mode for the DWT is not periodic. First, set the extension mode to 'per'
dwtmode('per');
Then use dwt2()
load woman;
dwtmode('per');
[A,H,V,D] = dwt2(X,'db2');

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