MATLAB code for non-maximum suppression

Hi, I have a set of bounding boxes with score. Now I want to apply non-maximum suppression on that set for my detection task. Could you kindly give me matlab code for non-maximum suppression? Thanks in advances.

Reserveboxes=[score box] % Reserveboxes is a 5920x5 array

Answer 1

[Manuel Dominguez]

%% Nonmaxmimum Suppression

function imgResult = nonmaxsup2d(imgHough)

imgResult = zeros(size(imgHough));

for y = 2:size(imgHough, 1)-1

for x = 2:size(imgHough, 2)-1

offx = [1 1 0 -1 -1 -1 0 1];

offy = [0 1 1 1 0 -1 -1 -1];

val = imgHough(y, x);

is_max = true;

for i=1:8

if y == 2 && offy(i) == -1

continue

end

if y ==size(imgHough,1)-1 && offy(i) == 1

continue

end

if x ==2 && offx(i) == -1

continue

end

if x ==size(imgHough,2)-1 && offx(i) == 1

continue

end

if val < imgHough(y+offy(i), x+offx(i))

is_max = false;

break;

end

end

if is_max

imgResult(y, x) = val;

end

end

end

end