Using Opencv with OIDN

I am converting them using

	src2.convertTo(src2, CV_32FC3, 1.0, 0.0);
	src.convertTo(src, CV_32FC3, 1.0, 0.0);

// doing oidn stuf
// then converting back

	src2.convertTo(src2, CV_32FC4, 1.0, 0.0);
	src.convertTo(src, CV_32FC4 1.0, 0.0);

Should I be doing something else?