eigen faces

2011 11 2
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can sumone explain me what an eigen face actually signify??

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Jonas Reber
Jonas Reber 2011-11-2

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Eigenfaces are eigenvectors. When performing principal component analysis (PCA) on a set of images showing human faces, the principal directions or the components that span the space are called the eigenfaces instead of eigenvectors because the underlying data are faces... its just another name.
you might want to have a look at: http://en.wikipedia.org/wiki/Eigenface

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