>> I = imread('D:\MATLAB7\work\2.bmp');
>> [c1,s1]=wavedec2(I,1,'haar')
Warning: CONV2 on values of class UINT8 is obsolete.
Use CONV2(DOUBLE(A),DOUBLE(B)) or CONV2(SINGLE(A),SINGLE(B)) instead.
> In uint8.conv2 at 11
In wconv2 at 25
In dwt2 at 80
In wavedec2 at 52
Warning: CONV2 on values of class UINT8 is obsolete.
Use CONV2(DOUBLE(A),DOUBLE(B)) or CONV2(SINGLE(A),SINGLE(B)) instead.
> In uint8.conv2 at 11
In wconv2 at 25
In dwt2 at 83
In wavedec2 at 52
??? Error using ==> vertcat
All rows in the bracketed expression must have the same
number of columns.

Error in ==> wavedec2 at 54
s = [size(x);s]; % store size

我使用的图片是800×600的图片，即使是用600×600也是这个错误
为什么啊？