Found error in CCorner real projection when one points is very near to border
Found error in CCorner real projection when one points is very near to border

e.g. x=0.9 with round goes to 1 and add one more point.
This is difficult to fix due to numerical issues (error bigger than eps) so we better discard the observation
TODO: Get a more successful solution
jesusbriales/corner-calib,jesusbriales/corner-calib