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From: Selvaraaju on 11 Mar 2010 00:10
I have used wavedec2 on Image ( 512 * 512) to decompose it into 4 levels which means the level 1 coefficients ( horizontal, vertical, diagonal) should be of size 256 *256 and second level should be 128 *128 , etc..

But in MAtlab 2009b, I am getting 263 *263 matrix for level 1 coeffient. HOW?

Below is my code:
i=imread('lena.png');
>> img=double(i);
>> [C,S]=wavedec2(img,4,'sym8');
>> S

S =

46 46
46 46
77 77
139 139
263 263
512 512
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