How can i extract three texture features among the 22 using PCA?
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I am doing project on lung cancer detection for that i have extracted texture features using GLCM. Among the 22 features i need only three. Can anyone please help me to do this using PCA?
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Image Analyst
on 20 Dec 2016
If you have 22 PCA columns, then just extract the 3 you want as usual.
pca3 = pca22(:, 1:3); % or whatever.
If you have any followup questions, read this first and be much much more explicit in describing your situation.
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Image Analyst
on 20 Dec 2016
Are you using graycomatrix() or graycoprops()? How are you getting 22 things from either of those? I don't get that. My graycomatrix() demo is attached. Why don't you just call pca() and take the 3 most important components?
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