opencv/highgui.go
func (capture *Capture) Release() {
	cap_c := (*C.CvCapture)(capture)
	C.cvReleaseCapture(&cap_c)
}
func (capture *Capture) Release() {
	cap_c := (*C.CvCapture)(capture)
	C.cvReleaseCapture(&cap_c)
}
/* stop capturing/reading and free resources */