Introduction - If you have any usage issues, please Google them yourself
An integral part of the image, the image of people look one can see in image processing, often encounter, but i s the internal cause disconnected due to a variety of small gap, so that the computer " eye " is considered to be disconnected in order to adapt to the human eye feeling image, you need to connect these gaps and disconnect the mouth up, which requires domain processing techniques used in computer graphics connectivity. This paper presents a simple connected domain processing function, this function is of course from Learning OpenCV OpenCV famous tutorial, but its interface is based on the c version of OpenCV, and so far OpenCV based on C++ interfaces has been the mainstream, so I interface into a c++ version, but some of its internal code basically did not move it.