MATLAB: Imshow map image segmentation

Question

Hi,

I wrote a code but it does not show with scale I dont understand the reason.

Thank you

I=imread('mri.jpg');

J = imcrop(I,[197 180 130 165]);

%imshow(J);

[x,y]=size(J);

K=zeros(x,y);

cthresholdh=50;

cthresholdl=0;

for i=1:x

for j=1:y

if cthresholdh >= J(i,j) && J(i,j) >= cthresholdl

K(i,j)=1;

else

K(i,j)=0;

end

end

end

imshow(K,map);

Answer 1