Touching Character Segmentation of Call Number of Book

This paper analyzed the main cause of the stroke deformation and character touching when performing binarization process of call number image. An algorithm was presented to approximately measure the character width using the concave and convex of string profiles. And with the width constraining, partitioning paths can be constructed based on the profile feature and repair the deformation stroke. Finally, the method was tested with 50 books call numbers, which shows its effectiveness.