function spatial_filter = spatial_filter(image, filter)
    height = size(image, 1);
    width = size(image, 2);
    spatial_filter = zeros([height width]);
    filtn = size(filter, 1)
    filtm = size(filter, 2);
    for i = 1:height
        for j = 1:width
            sum = 0;
            for k = 1:filtn
                for l = 1:filtm
                    i2 = i-ceil(filtn/2);
                    j2 = j-ceil(filtm/2);
                    if (i2 < height + 1 && i2 > 0 && j2 < width + 1 && j2 > 0)
                        sum = sum + filter(k, l) * image(i2,j2);
                    end
                end
            end
            spatial_filter(i,j) = sum;
        end
    end

end