The supervised classification of data in a high-dimensional
space is a delicate problem which consists of creating a system
that can predict the correct class of domain objects. It is based
on building a procedure that will be applied to a sequence of
instances, where each new instance must be assigned to one of
a set of pre-defined classes on the basis of observed attributes
or features.
In this work, we were focused on the recognition of
characters, this problem of pattern recognition field , known
as OCR (Optical character recognition), remains one of the
most popular problems due to its various applications such as
forms processing, indexing archives, address classification
system, processing of bank check, analysis of written gesture,
interaction with the electronic pen, etc. The aim is to
transform a text image into an understandable representation
for machine and easily reproducible. Many works have been
conducted for different languages, an overview of the latest
works can be found in [1].
Recently, researchers have begun to give attention to the
Amazigh language OCR. In this context, various methods
have been used for handwritten characters based on: Hidden
Markov Models (HMM) [2], neural approaches [3],
geometrical and statistical methods [4][5], moments features
[6] and some hybrid methods [7][8][9].
As mentioned previously, this work focused on a
comparison of different supervised classifiers. In this context,
we adopted a classification system composed of several steps
as shown in figure 1.