The OpenCV findHomography function now raises an unhandled error if it
receives fewer than 4 points whereas previously the limit was 3. This
makes no material difference to the behaviour of the tuning tool as it
will continue to search for the Macbeth chart at different scales.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2d99cc53e2