I'm using the AGAST algorithm to extract keypoints from an image using OpenCV. For other keypoint detectors the size of the interest-region changes from keypoint to keypoint. But with AGAST keypoint.size evaluates to 7.0 always. Is there something I'm missing with regards to AGAST as an algorithm? See attached code:
agast = cv.AgastFeatureDetector_create()
kp = agast.detect(img1, None)
Forgot to mention: Using OpenCV version 3.4.5 (think I get the same results in 4.0 also though)