在Ptr <featuredetector> </featuredetector>上设置Hessian阈值

Question

使用此特定FeatureDetector，我无法弄清楚如何设置Hessian阈值。

Ptr<FeatureDetector> detector = FeatureDetector::create("SURF");

任何人都知道怎么做？

Answer 1

试试这个：

float newThresh = detector->getDouble("threshold") + 3;
detector->set("threshold", newThresh);