最大类间方差法是一种自适应的阈值确定的方法,又叫大津法,简称OTSU。它是按图像的灰度特性,将图像分成背景和目标2部分。-The method of determining the threshold Otsu method is an adaptive, also known Otsu, referred OTSU. It is based on the gradation characteristics of the image, the image into the background and objectives of the two parts.