[S.Area] not supported for code generation
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tsai kai shung
on 26 Oct 2017
Commented: Walter Roberson
on 27 Oct 2017
hey guides i use this function on the simulink but show the error:Referencing a component from array of non-scalar values is not supported for code generation.
Function 'MATLAB Function' (#35.204.212), line 8, column 25:
"[S.Area]"
Launch diagnostic report.
what can replace this to success simulation on simulink.
function y = areaimg(u)
bw2 = zeros(240,320);
ss = 20;
B = 6000;
img_bw2 = bwareaopen(u,ss,8);
[L2,num2]=bwlabel(img_bw2,8);
S = regionprops(L2,'Area');
bw2 = ismember(L2, find([S.Area] < B));
y = bw2;
end
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Accepted Answer
Walter Roberson
on 26 Oct 2017
Edited: Walter Roberson
on 26 Oct 2017
Just loop. You are generating code anyhow, so the loop should be efficient.
Have you considered using bwareafilt() instead ?
6 Comments
Walter Roberson
on 27 Oct 2017
false() and zeros() are not the same: false() creates an array of type logical and zeros() creates an array of type double.
More Answers (2)
Image Analyst
on 27 Oct 2017
What is num2? Is it 0, and therefore S is empty? If S is empty, then trying to access S.Area would throw an error.
0 Comments
Image Analyst
on 27 Oct 2017
The whole function can be done with this single line of code
y = bwareafilt(u, [1, 6000]);
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