实现肝脏图像的边缘提取，利用打进率发，效果不错(To achieve the edge of the liver image extraction, the use of rate of hair, the effect is good)

将标记好的肝脏图片中的肝脏给逐个标点圈出来，即利用CT图像自动识别肝脏部分。(The liver in the marked liver image is circled one by one, that is, the liver part is automatically recognized by CT image.)