PCA - select subset from eigenvalues - NV5 Geospatial

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Last Post 23 Jun 2010 10:14 AM by anon

PCA - select subset from eigenvalues

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anon

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23 Jun 2010 10:14 AM
I am running PCA on 160-band data. Is there a way to select a non-contiguous subset of eigenvalues? I don't just want the first 10 or so PCA bands, I want a set of individual bands (7, 10, 22, 34, etc.). I know I can spectrally subset the final output, but I want to perform an inverse transformation and I'm not sure how to exclude all of the other components. Thoughts?

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23 Jun 2010 12:48 PM
When you start the inverse PCA transform, and you're chosing your input file, you can click the Spectral Subset button, and select only the bands of interest for the inverse.

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