computeAsync method
async version of compute
Implementation
Future<Scalar> computeAsync(Mat cmp) async {
final p = calloc<cvg.Scalar>();
return cvRunAsync0((callback) => ccontrib.cv_quality_QualityPSNR_compute(ref, cmp.ref, p, callback), (c) {
return c.complete(Scalar.fromPointer(p));
});
}