Modeling and Implementing Two-Stage AdaBoost for Real-Time Vehicle License Plate Detection

Procedure 2

Adaptive threshold (in, out, , ).

(1)   for   to   do

(2)  sum ← 0

(3)    for   to   do

(4)  sum ← sum + in

(5)   if    then

(6)  intImg← sum

(7)   else

(8)  intImg← intImg + sum

(9)   end if

(10)  end for

(11)  end for

(12) for   to   do

(13)  for   to   do

(14)     ←   {border checking is not shown}

(15)  

(16)  

(17)  

(18)  count ←

(19)  sum ← intImg − intImg − intImg + intImg

(20)     if (in × count)_(sum × ()/100)

(21)     then out

(22)  else

(23)   out

(24)  end if

(25)  end for

(26) end for