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From: Tirta Dhany on 7 Jan 2010 02:57
Hi, Guys

I want to apply filter2 to cell array to get mean value. Each cell have format like this:
[128x128x6 double]
[64x64x6 double]
[32x32x6 double]

I'm using code that <a href="http://www.mathworks.com/matlabcentral/newsreader/author/11763">us</a> at my question in
http://www.mathworks.com/matlabcentral/newsreader/view_thread/269422

to puts each page from a multipage CELL into its own CELL
{m x n x p}
->
{m x n} : page 1
{m x n} : page 2
...
{m x n} : page P
Apply to each page, and average them.
So, I modified the code in rt
ns=size(Yh_abs,1);
s=cellfun(@size,Yh_abs,'uni',false);
fh=@(m,n) mat2cell(cat(3,m{n}),s{n}(1),s{n}(2),ones(1,s{n}(3)));
r=cell(ns,1);
for i=1:ns
rt=cellfun(@(x) filter2(window, x, 'valid'), fh(Yh_abs,i),'UniformOutput',false);

end
r=cat(3,r{:});
mu1 = mean2(r);

this code return NaN , how to solve this ?
Thanks
From: Tirta Dhany on 7 Jan 2010 04:30
That code is not complete.
window = fspecial('gaussian', 16, 1.5);
ns=size(Yh_abs,1);
s=cellfun(@size,Yh_abs,'uni',false);
fh=@(m,n) mat2cell(cat(3,m{n}),s{n}(1),s{n}(2),ones(1,s{n}(3)));
r=cell(ns,1);
for i=1:ns
rt=cellfun(@(x) filter2(window, x, 'valid'),fh(Yh_abs,i),'UniformOutput',false);
r{i}=mean(cat(3,rt{:}));
end
%r=cat(3,r{:});
%filter_value = mean2(r);
filter_value = mean2(cellfun(@mean2, r));

is rt code is right?
I modify r{i}=mean(cat(3,rt{:}),3); to r{i}=mean(cat(3,rt{:}));
in r=cat(3,r{:}); i got error msg
CAT arguments dimensions are not consistent.

After modify r{i} and exclude r=cat(3,r{:});, I get the value.
Is apply filter2 to matrix is same as we apply average?
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