Analytical Review of Preprocessing Techniques for Offline Handwritten Character Recognition

Gaurav Kumar

Abstract


Preprocessing techniques are the first step in a
character recognition system. This paper deals with the
various preprocessing techniques involved in character
recognition system with different kind of images ranges from
simple handwritten form based documents and documents
containing colored and complex background and varied
intensities. Here, we are going to discuss all important
preprocessing techniques like skew detection and correction,
image enhancement techniques of contrast stretching,
binarization, noise removal techniques, normalization and
segmentation, morphological processing techniques.

Keywords


Binarization;Character Recognition;Noise Removal; Normalization; Preprocessing Techniques; Segmentation.

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