imshow map image segmentation

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);

[Alex Mcaulley]

What do you mean by "it does not show with scale"? Do you have any error? The question is not clear.

By the way, you don't need the loop nor x, y variables:

I=imread('mri.jpg');
J = imcrop(I,[197 180 130 165]);
%imshow(J);
K=zeros(size(J));
cthresholdh=50;
cthresholdl=0;
K(J >= cthresholdl & J <= cthresholdh) = 1;
imshow(K,map);  

Answer 1

[Ahsen Feyza Dogan]

Answer 2

[Ahsen Feyza Dogan]

Thank you I want to show like this image.

https://www.mathworks.com/help/examples/images/win64/MRISliceExample_02.png

[Alex Mcaulley]

Can you upload your image ('mri.jpg')?

Answer 3

[Alex Mcaulley]

You just need to tune the rectangle in the imcrop call to adjust it to the result you want. For example:

I=imread('mri.jpg');
J = imcrop(I,[90 70 340 410]); %Changed
%imshow(J);
K=zeros(size(J));
cthresholdh=50;
cthresholdl=0;
K(J >= cthresholdl & J <= cthresholdh) = 1;
imshow(K)

Is this that you want? If not, specify what are you looking for in detail.