Put up an apriltag to see its detection. Save next detection (local storage)

Camera Parameters (valid json, as given by calibdb):
{ "camera_matrix": [ [ 939.3384407933022, 0, 640.347854307481 ], [ 0, 938.2560270381138, 340.7192620859387 ], [ 0, 0, 1 ] ], "img_size": [ 1280, 720 ] }

Saved detection:
No detection saved yet.