How do we extract a 2D matrix out of a 2D matrix?

I have a 2D matrix of 600x1000 and I want to create a nested loop to extract 51x51 matrix data. How can we do that? Thanks.

Answer 1

[Walter Roberson]

for row_index = 1 : number_of_rows_to_transfer
    for column_index = 1 : number_of_columns_to_transfer
        TheOutputArray(row_index, column_index) = TheInputArray(row_index+row_offset, column_index+column_offset);
    end
end

[BBB]

Hi Walter,

Is this right?

for hh = 1:10000
    for pp = 1:600
        u(hh,pp)= im(1:51,1:51);
    end
end