中文说明：图像分割程序，采用水平集演化的思想，实现偏微分方程中的GAC模型。Image segment source code(GAC model)，which adopt the idea of level set evolving.
English Description：
The image segmentation program adopts the idea of level set evolution to realize the GAC model in partial differential equation. Image segment source code(GAC model)，which adopt the idea of level set evolving.