医学图像处理；灰度直方图；边缘检测；灰度变换；图像增强；图像分割；-medical image processing edge detection gray-scale transformation image enhancement image segmentation

This Matlab/C code contains routines to perform level set image segmentation according to: (1) various multiphase (multiregion) formulations, including a fast scheme where the computation load grows linearly with the number of regions and,