Hello All,
I'm new to OpenCV Answers community.
Situation: Using the AKAZE to find the key points of a given gray scale image(Dimension 120 x 43), 0 key points were detected. Then I am doing a test with add black margin on each direction
Trails" add margin on each side of the original image and then do the AKAZE detections. Finding as followed:
Original Detected Keypoints: 0 
Margin 10, Detected points 3: 
Margin 15, Detected points 6: 
Margin 20, Detected points 15: 
We can see there is a trend, more key points were detected when increase the margin.
Question For the AKAZE, is there any limitation for the image size?