After detecting a bunch of blobs I want to edit the keypoints list of their coordinates and apply custom criteria which I have a good idea how to do it. But problem is how do I “trim” the list, that is, delete sets of coordinates in the keypoints. I can write zeros to the keypoint list to indicate deletion, but my .size() would still be artificially high.
x = binKeypoints[0].pt.x;
y = binKeypoints[0].pt.y;
x1 = binKeypoints[1].pt.x;
y1 = binKeypoints[1].pt.y;
x2 = binKeypoints[2].pt.x;
y2 = binKeypoints[2].pt.y;
int object_num = binKeypoints.size()
std::cout<<"Object Nums:" << object_num << std::endl;