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

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

[Adam]

where is 'l' defined?

Answer 1

[Steven Lord]

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.

[ElizabethR]

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 :)