Undefined function 'mrdivide' for input arguments of type 'struct' error

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ElizabethR
ElizabethR 2016-3-15
评论： ElizabethR 2016-3-15
i have a code :
a=imread('a2.png');
bw=im2bw(a);
l=regionprops(bw,'Area');
b=20000;
m1=fix(m*sqrt(b/l));
but, i get the error :
Undefined function 'mrdivide' for input arguments of type 'struct'.
how to fix this ? please help. Thanks

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Steven Lord
Steven Lord 2016-3-15
I'm assuming "l" is actually supposed to be "large" and that you changed one of them after copying and pasting your code but forgot to change the other. Anyway, REGIONPROPS returns a struct array. You can't divide by a struct array but you could divide by the contents of the fields of that struct array. See the second of the Tips on that documentation page for how to create a vector from the struct.
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ElizabethR
ElizabethR 2016-3-15
hi Steven, Thanks for answare my question.. oohh yeah, i mean that l is large. thank you so much for your explanation .. God Bless You :)

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