Chinese text image inversion fast detection algorithm
Kan Chen · Jisuanji gongcheng yu sheji · 2012
Given the facts that the image processing technology(such as OCR) is strict with image direction and text image direction is uncertain,this paper put forward a rapid inversion detection algorithm for Chinese text image.Firstly,locate the text characters by using the projection technique.Select the punctuation marks in the text image considering Chinese characters and punctuation structure features.Then,judge the type of punctuation marks according to their pixel distribution characteristics and using habits.Finally,decide inversion of Chinese text image by using statistical method.The experimental results show that the projection technique can achieve fast and efficient requirements without content-based processing,and the statistical method can guarantee the discrimination rate for inversion detection.This method can be used in OCR preprocessing.