4
Classification in Statistical PR
• A class
is a set of objects having some important
properties in common
• A feature
extractor is a program that inputs the
data (image) and extracts features that
can be
used in classification.
• A classifier
is a program that inputs the feature
vector and assigns it to one of a set of
designated
classes or to the “reject” class.
With what kinds of classes do you work?