getWinSigmaAsync method
Implementation
Future<double> getWinSigmaAsync() async {
final rval =
cvRunAsync<double>((callback) => cffi.HOGDescriptor_getWinSigma_Async(ref, callback), (c, p) {
final rval = p.cast<ffi.Double>().value;
calloc.free(p);
return c.complete(rval);
});
return rval;
}