使用opencv的cvfloodfill实现了根据选取点的像素而自动扩展的区域的功能，达到区域选择的目的-The cvfloodfill achieved using opencv selected points according to the pixels and features automatic extension of the region to achieve the objective of regional choic

example using the cvFloodFill () to fill the area of the initial pixel is selected by clicking with the mouse

通过 cvfloodfill对图像区域进行填充。具有较好的填充效果-By cvfloodfill fill the image area. Has good filling effect