图像阈值分割的方法很多，但目前很难找到适用于各种场合的分割方法。本文针对实际情况对几种分割方法进行了分析比较及实验研究。在此基础上引入了遗传算法，加快了算法的收敛速度。最后将一种改进的遗传算法用于优化图像分割，取得了较好的分割效能。-Image Thresholding methods, but it is difficult to find a suitable segmentation method on various occasions. In this paper, the actual situation of several segmentation methods have been compared and Experimental Research. On this basis, the introduction of a genetic algorithm to accelerate the convergence speed. Finally, an improved genetic algorithm for optimization of image segmentation, and achieved good segmentation performance.