Blobs with OpenCV. Which library is best? [closed]

Answer 1

You should take a look at the new opencvblobslib. It has great features like multi core support.

Answer 2

You should use the SimpleBlobDetector class in OpenCV 2.4. You pretty much create an object of type SimpleBlobDetector and then call the detect(cv::Mat input, vector<cv::KeyPoint> keypoints, cv::Mat mask) function with a cv::Mat image as input, an empty vector for keypoints, and another cv::Mat as an optional mask for a specific area of the image to look for keypoints in.

Note that the cv::Mat object has taken over image and matrix storage duty for all of the formerly separate image and matrix classes in the earlier releases of OpenCV.