thresholding an image

2012 6 11
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I `have code
[cA,cH,cV,cD] = dwt2(X,'Haar')
my image is
http://www.sendspace.com/file/d9rh3j
in this i want to remove non text edges using threshold in all subbands ,please help

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kash
kash
2012-6-11

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