corr2 on simulink don't code genaration

2017 10 18
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更新时间：2017 10 20
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The function 'corr2' is not supported for standalone code generation. See the documentation for coder.extrinsic to learn how you can use this function in simulation.
what function can replace this function on the simulink simulation?

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Birdman
Birdman 2017-10-18

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There is the necessary function and its embedded model in a MATLAB Function in Simulink. Hope this helps. You need to have the m file and the model at the same directory.

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tsai kai shung
tsai kai shung 2017-10-19
sorry i use this function run on the matlab show the error message: Error using * Inner matrix dimensions must agree.
Error in Corr3 (line 5) rNum(i)=((A(i)-A_0)*(B(i)-B_0));
Error in OCR (line 55) sem=Corr3(templates(1:42,n:n+23),img_r);
Birdman
Birdman 2017-10-19
It should work just fine. Make sure that arrays are the same length
Walter Roberson
Walter Roberson 2017-10-19
It looks to me like the inputs must be vectors?
Birdman
Birdman 2017-10-19
The inputs are vectors.
tsai kai shung
tsai kai shung 2017-10-19
my input is array!so how to change this function
Birdman
Birdman 2017-10-19
Define nx1 array, which means vector.
tsai kai shung
tsai kai shung 2017-10-19
编辑：Walter Roberson 2017-10-19
function r = Corr2(A,B)
A = A - mean2(A);
B = B - mean2(B);
r = sum(sum(A.*B))/sqrt(sum(sum(A.*A))*sum(sum(B.*B)));
end
i use this can normal run
Birdman
Birdman 2017-10-19
A=[1 2 3 4] and B=[3 4 5 6]. In constant block in simulink, just type the array, don't write A=[1 2 3 4]. Write [1 2 3 4] only.
tsai kai shung
tsai kai shung 2017-10-20
i use the BWimage input

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