The study of segmentation of rubbings image based on OTSU&histogram differential algorithm

Abstract

This paper studies the segmentation methods by analyzing the threshold method of rubbings. Firstly, OTSU and fast 2 dimensional OTSU threshold segmentation algorithms are presented, and the segmentation effect of a given image is analyzed. The limitation of OTSU, and fast 2 dimensional OTSU segmentation algorithm are explained. Then the segmentation algorithm is given in conjunction with the histogram, and the segmentation effect is proven effective by experiments. The experimental results show that the OTSU algorithm is difficult to distinguish target and background when their areas are different. The rubbings image segmentation algorithm based on the histogram differential can effectively separate the target from the background.