func (img *IplImage) SetCOI(coi int) {
	C.cvSetImageCOI((*C.IplImage)(img), C.int(coi))
}
func (img *IplImage) SetCOI(coi int) {
	C.cvSetImageCOI((*C.IplImage)(img), C.int(coi))
}
func ( img * IplImage ) SetCOI ( coi int ) { C . cvSetImageCOI ( ( * C . IplImage ) ( img ) , C . int ( coi ) ) }
/* Sets a Channel Of Interest (only a few functions support COI) -
   use cvCopy to extract the selected channel and/or put it back */
/ * Sets a Channel Of Interest ( only a few functions support COI ) - use cvCopy to extract the selected channel and / or put it back