Analytical Review of Preprocessing Techniques for Offline Handwritten Character Recognition
Gaurav Kumar, Bhatia, Pradeep Kumar, , Indu · International Journal of Advances in Engineering Sciences (RG Journals of Scientific Research) · 2013
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.