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FEATURE EXTRACTION OF CROPPED IMAGE

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Explorer
Explorer 2014-1-21
评论： NARGISH 2014-4-17
I am following this:
X=imread('croppedImage.jpg');
croppedImage.jpg
dimension=size(croppedImage)
% Mean M=mean2(X)
% Covariance C=(X-M)*(X-M)'
Now I do not know how to find Eigen Value and Eigen Vector from Covariance Matrix.
Please help
Also write code for this statement "Finally the Eigen vectors are arranged in such a way that the corresponding Eigen value is in the decreasing order."
Thanks!
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Image Analyst
Image Analyst 2014-4-16
I'd say that the image was probably converted to HSV space and they thresholded the S channel. Then took the largest blob.

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