// Detects Corners with Detector Framework and Draws Keypoints to outMat
void CornerDetection()
{
// Creating Detector
int octaves = 6;
float corner_thresh = 0.015f;
float dog_thresh = 0.015f;
int max_detections = 5;
HarrisLaplaceFeatureDetector detector = HarrisLaplaceFeatureDetector.create(
octaves, corner_thresh, dog_thresh, max_detections);
// Finding corners
// imageMat = cached_initMat;
Core.flip(cached_initMat, imageMat, 0);
keyMat = new MatOfKeyPoint();
detector.detect(imageMat, keyMat);
// Draw corners
Features2d.drawKeypoints(imageMat, keyMat, outMat);
}
void ComputerVisionAlgo(IntPtr greyscale)
{
Utils.copyToMat(greyscale, imageMat);
// Creating Detector (Red Circle)
MatOfKeyPoint keyMat = new MatOfKeyPoint();
HarrisLaplaceFeatureDetector detector = HarrisLaplaceFeatureDetector.create(6, 0.015f, 0.015f, 5);
// Finding circles
Debug.Log(keyMat.size());
detector.detect(imageMat, keyMat);
if (keyMat.size().height > 0)
{
double blob_x = keyMat.get(0, 0)[0];
double blob_y = keyMat.get(0, 0)[1];
double blob_r = keyMat.get(0, 0)[2];
}
// Visualizing detected circles
// m_ImageInfo.text = string.Format("Circle Count: {0}\n Circle[0]: {1} x {2} -- {3}",
// keyMat.size().height, blob_x, blob_y, blob_r);
Features2d.drawKeypoints(imageMat, keyMat, outMat);
}