K means clustering in DICOM files

Question

George 2015-9-3

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/239461-k-means-clustering-in-dicom-files

编辑： Hamoon 2015-9-7

Hi guys. I attempt to do k mean clustering to detect some small areas of very bright or very dark spots inside a DICOM file. The problem is that I can not find the right format for my DICOM images to perform the k-mean function in Matlab. My images are let's say 256*256 and when I do perform k mean clustering I get back a 256*1 matrix which I am not sure how to interpret. Any ideas would be really much appreciated! Best wishes, George

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Hamoon 2015-9-7

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/239461-k-means-clustering-in-dicom-files#answer_191558

编辑：Hamoon 2015-9-7

在 MATLAB Online 中打开

It'll be better idea if you do feature extraction on your image before using kmeans, but If you simply want to perform kmeans on pixel intensities of your gray level image, you can try this:

 im=imread('cameraman.tif');  % an exemplar image (256*256)
 imData = reshape(im,[],1); % convert it to an array (65536*1)
 imData = double(imData);      %  convert from uint8 to double
 IDX = kmeans(imData,2);      % perform kmeans with two clusters
 imIDX = reshape(IDX,size(im));  % a (256*256) matrix of indexes