I want to prepare a Matlab code for fuzzy rule based Edge detection. I have a problem with ' colfilt' command.How can I solve this problem?

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MatLab

after running the code,I reached to the following error :

??? Error using ==> reshape
To RESHAPE the number of elements must not change.

Error in ==> colfilt at 149
b = reshape(feval(fun,x,params{:}), size(a));

Error in ==> test2 at 89
x1=uint8(colfilt(x1,[2,2],'sliding',@fedge1))
I defined the function fedge as follows:

function [ uu ] = fedge1( P11,P21,P31,P41 )

kk=readfis('fis.fis')
t=kk.input

P11=double(t(1).name)
P21=double(t(2).name)
P31=double(t(3).name)
P41=double(t(4).name)
P=[P11;P21;P31;P41]
uu=evalfis(P(:,2),kk)

end