The classification stage is the decision making part of a recognition system and it uses the
features extracted in the previous stage. A feed forward back propagation neural network having
two hidden layers with architecture of 54-100-100-38 is used to perform the classification. The
hidden layers use log sigmoid activation function, and the output layer is a competitive layer, as
one of the characters is to be identified. The feature vector is denoted as X where
X = (f1, f2,…,fd) where fdenotes features and d is the number of zones into which each character
is divided. The number of input neurons is determined by length of the feature vector d. The
total numbers of characters n determines the numberof neurons in the output layer. The number
of neurons in the hidden layers is obtained by trial and error. The most compact network is
chosen and presented.