关键词: 图像分割, 阈值选取, 二维Otsu法, 折线阈值

Abstract: Otsu method is a widely used thresholding segmentation method. To achieve more accurate segmentation of the image, and consider the impact of the edge, a broken-line thresholding segmentation method from the idea that two-dimensional line threshold segmentation instead of the traditional two-dimensional point threshold segmentation is proposed in this paper. The simulation results show that the broken-line thresholding method has a better effect than the original Otsu method, especially for the images with rich edges. The broken-line thresholding segmentation method has better universality than other method in this paper.

Key words: image segmentation, threshold selection, 2-D Otsu method, broken-line thresholding