可以根据图像的局部特征分别采用不同的阈值进行分割。实际处理时，需要按照具体问题将图像分成若干子区域分别选择阈值，或者动态地根据一定的邻域范围选择每点处的阈值，进行图像分割。-According to the local characteristics of image with different threshold segmentation. Actual processing, the need to divide the image into several sub areas according to the specific problem respectively choose the threshold value, or dynamically according to the scope of a certain neighborhood choose threshold value of every point, carries on the image segmentation.