opencv/cxcore.go
func (mat *Mat) Release() {
	mat_c := (*C.CvMat)(mat)
	C.cvReleaseMat(&mat_c)
}
func (mat *Mat) Release() {
	mat_c := (*C.CvMat)(mat)
	C.cvReleaseMat(&mat_c)
}
/* Releases CvMat header and deallocates matrix data
   (reference counting is used for data) */