关键词: 图像分割, 集中于目标的Otsu法, 灰度梯度映射函数

Abstract: During the actual image has existing object and background gray level information distribution imbalance, based on the image thresholding thinking focused on the goal, the histogram information of the image is introduced to get more detailed guidelines thresholding. Considering the edge information of the image, the gray gradient mapping function is introduced, the gradient based and the focused on the goal of Otsu threshold method is proposed. The results of lots of classic image thresholding show that the proposed method is better than the existing methods, and it can obtain more complete objects and clearer edges.

Key words: image segmentation, focused on the goal of Otsu, gray gradient mapping function