/// <summary> /// Create an OpenCL SURF detector /// </summary> /// <param name="hessianThreshold">The interest operator threshold. Use 100 for default</param> /// <param name="nOctaves">The number of octaves to process. Use 4 for default</param> /// <param name="nIntervals">The number of intervals in each octave. Use 4 for default</param> /// <param name="extended">True, if generate 128-len descriptors, false - 64-len descriptors. Use true for default.</param> /// <param name="featuresRatio">Max features = featuresRatio * img.size().srea(). Use 0.01 for default</param> /// <param name="upright">Use false for default. If set to true, the orientation is not computed for the keypoints</param> public OclSURFDetector( float hessianThreshold, int nOctaves, int nIntervals, bool extended, float featuresRatio, bool upright) { _ptr = OclInvoke.oclSURFDetectorCreate(hessianThreshold, nOctaves, nIntervals, extended, featuresRatio, upright); }