movetocenter.m

滤波器与伪彩色变换

%f为物体图象
%返回result
%该函数进行图象的二值化
function result = movetocenter(f)
[x,y] = size(f);
f1 = zeros(x,y);
f2 = zeros(x,y);
mid_x = x/2;
mid_y = y/2;
for i = 1:x
    for j = 1:y
        if(i<=mid_x)
            f1(i+mid_x,j) = f(i,j);
        else
            f1(i+mid_x-x,j) = f(i,j);
        end
    end
end

for i = 1:x
    for j = 1:y
        if(j<=mid_y)
            f2(i,j+mid_y) = f1(i,j);
        else
            f2(i,j+mid_y-y) = f1(i,j);
        end
    end
end
result = f2;