Re: ImageJ PCA

Posted by Gabriel Landini on Apr 13, 2007; 9:49am
URL: http://imagej.273.s1.nabble.com/ImageJ-PCA-tp3699745p3699748.html

On Wednesday 11 April 2007 18:40:30 aszia787 wrote:
> Dear all,
>
> I have a question in regards to the ImageJ plugins for PCA. I am trying to
> extract the principal components of a feature set that comprises of 56
> features. I used the ImageJ plugin for calculating the PCA for a stack of
> images and in the end i get a graph with the eigen values for the
> respective images. Initially i used 14 stacks to calculate the PCA,

Maybe I do not understand.
If you have 56 variables, where does the 14 (image stack?) come from?
I would have expected that each slice represents a different variable when one
submits the stack to the PCA (here I am talking of the BIJ plugin called
PCA).

Cheers,

G.