imshow map image segmentation
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Ahsen Feyza Dogan
am 3 Jul. 2019
Beantwortet: Alex Mcaulley
am 3 Jul. 2019
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);
1 Kommentar
Alex Mcaulley
am 3 Jul. 2019
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);
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Alex Mcaulley
am 3 Jul. 2019
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)
![res.jpg](https://www.mathworks.com/matlabcentral/answers/uploaded_files/227281/res.jpeg)
Is this that you want? If not, specify what are you looking for in detail.
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