to Table I for details). Notice that, even though the embedded
message lengths are different, the successful decoding rates of
(15, ) and (15, ) QR codes are the same. For QR codes with
larger version sizes (say ), the correctness of decoding
will be reduced significantly, because the corresponding modules
on a QR code are too small to be recognized correctly for
a normal mobile phone. This unstable decoding behavior also
occurs in traditional QR codes without beautification, when the
version size is too large.