完成区域生长算法，其中先使用sobel进行边缘检测（也可以跳过此步骤），再进行区域生长实现分割。使用VC++6.0，opencv1.0-Complete the region growing algorithm, which first edge detection using sobel (you can also skip this step), then the region growing to achieve segmentation. Use VC++6.0, opencv1.0