How to crop some matrix row

How do I crop a 105x41 matrix to get a 41x41 matrix. I want to crop the top and bottom rows to get the central 41x41 matrix. Something like opposite of padarray?

Answer 1

[Andrei Bobrov]

A = randi([0 255],105,41,'uint8'); % your matrix

i1 = ceil(size(A,1)/2);
out = A(i1 - 20 : i1 + 20,:);

[Mahi Nazir]

Thank you so much! Does exactly what I want