Defining and Using Variable-Size Data in MATLAB Function Blocks

hello there any one can help me.

I´m working with simulink and add a matlab function block

e=d(:,ind);            
fi=int8(d(1,ind));
ci=int8(d(2,ind));
fo=int8(d(1,ind)+d(3,ind));
co=int8(d(2,ind)+d(4,ind));
a=inten(fi:fo,ci:co);

need to create a matrix of 2 dimension with size specified in d(:,n), and values from matrix 'inten', this is a intensity image.

any help is welcome.

[Fangjun Jiang]

Use {}Code format next time.