Matlab - Función que cree un crossboard

function [crossboard] = crossboard2(M,N,C,F)

L1 = floor(M/C);

L2 = floor(N/F);

zeros_cell = ones(L2, L1, 'single')*(-1);

ones_cell = ones(L2, L1, 'single');

intern_columns_extrem_rows = repmat(zeros_cell, [1 C-2]);

extrem_rows = [ones_cell intern_columns_extrem_rows ones_cell];

intern_columns_extrem_rows = repmat(ones_cell, [1 C-2]);

intern_rows = [zeros_cell intern_columns_extrem_rows zeros_cell];

intern_crossboard = repmat(intern_rows', [1 F-2]);

crossboard = [extrem_rows; intern_crossboard' ;extrem_rows];

end

function [output] = code2image2(code,alpha)

output = repmat(code.*alpha,6,10);

end

%  Data Inpunt:

Mcode = input('Size x: ');

Ncode = input('Size y: ');

Fcode = input('Rows: ');

Ccode = input('Columns: ');

alpha = input('Alpha: ');

x_size = floor(Mcode/Ccode);

y_size = floor(Ncode/Fcode);

code_one_cell_cross = crossboard2(x_size,y_size,Ccode,Fcode);

output_cross=code2image2(code_one_cell_cross,alpha);

figure, imshow(output_cross,[]); title('Codigo crossboard');