Binarization method to scanning image of thicker book
Zhigang Liu · Jisuanji yingyong yanjiu · 2011
Black pieces always appear on the image margin while scan the thicker book,because the middle gap of thicker book is hard to planish.The ordinary threshold method can't achieve the perfect effect,and it will affect character recognition.This paper proposed a new binarization method to scanning image.Based on dynamic threshold,used texture analysis on partitional images,then separated partitional images into different types,and different types would have different algorithms to cope with.This method avoids influences brought by black pieces and the change of background luminance.