图像分割是模式识别和计算机视觉中很重要的一个部分，基于阈值的图像分割具有简单、计算量小、效率高等特点，在实际图像处理中具有广泛的应用。(Image segmentation is an important part of pattern recognition and computer vision, threshold image segmentation is a simple, small amount of calculation, based on high efficiency, are widely applied in real image processing.)