Optimising fingerprint scan compare process











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I'm creating some python script in Raspberry Pi to running fingerprint scan and compare it against database. Using this library, on raspberry start this script will get all the database record for fingerprint characteristics and the for loops will compare it. After getting about 100 records the loops is running very slow.



import RPi.GPIO as GPIO
import time
import requests
import hashlib
import MySQLdb
from pyfingerprint.pyfingerprint import PyFingerprint

def connect():
return MySQLdb.connect(host="192.168.1.1", user="root", passwd="123456", db="abc")

GPIO.setmode(GPIO.BOARD)
GPIO.setup(18, GPIO.OUT)
GPIO.output(18, GPIO.LOW)

try:
f = PyFingerprint('/dev/ttyUSB1', 57600, 0xFFFFFFFF, 0x00000000)

if ( f.verifyPassword() == False ):
raise ValueError('The given fingerprint sensor password is wrong!')

except Exception as e:
print('The fingerprint sensor could not be initialized!')
print('Exception message: ' + str(e))
pass

db = connect()
cur = db.cursor()
cur.execute("SELECT * FROM fingers")
row = cur.fetchall()
while True:
try:
print('Waiting for finger...')
while(f.readImage() == False):
pass

f.convertImage(0x01)

for ro in row:
ss = eval(ro[2])
f.uploadCharacteristics(0x02,eval(ss))
if ( f.compareCharacteristics() == 0 ):
#print('Fingers do not match')
pass
else:
#print('Finger Match')
GPIO.output(18, GPIO.HIGH)
time.sleep(1)
GPIO.output(18, GPIO.LOW)
time.sleep(1)
break
#db.close()

except Exception as e:
print('Operation failed!')
print('Exception message: ' + str(e))
pass


Any suggestion? Thanks









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    up vote
    0
    down vote

    favorite












    I'm creating some python script in Raspberry Pi to running fingerprint scan and compare it against database. Using this library, on raspberry start this script will get all the database record for fingerprint characteristics and the for loops will compare it. After getting about 100 records the loops is running very slow.



    import RPi.GPIO as GPIO
    import time
    import requests
    import hashlib
    import MySQLdb
    from pyfingerprint.pyfingerprint import PyFingerprint

    def connect():
    return MySQLdb.connect(host="192.168.1.1", user="root", passwd="123456", db="abc")

    GPIO.setmode(GPIO.BOARD)
    GPIO.setup(18, GPIO.OUT)
    GPIO.output(18, GPIO.LOW)

    try:
    f = PyFingerprint('/dev/ttyUSB1', 57600, 0xFFFFFFFF, 0x00000000)

    if ( f.verifyPassword() == False ):
    raise ValueError('The given fingerprint sensor password is wrong!')

    except Exception as e:
    print('The fingerprint sensor could not be initialized!')
    print('Exception message: ' + str(e))
    pass

    db = connect()
    cur = db.cursor()
    cur.execute("SELECT * FROM fingers")
    row = cur.fetchall()
    while True:
    try:
    print('Waiting for finger...')
    while(f.readImage() == False):
    pass

    f.convertImage(0x01)

    for ro in row:
    ss = eval(ro[2])
    f.uploadCharacteristics(0x02,eval(ss))
    if ( f.compareCharacteristics() == 0 ):
    #print('Fingers do not match')
    pass
    else:
    #print('Finger Match')
    GPIO.output(18, GPIO.HIGH)
    time.sleep(1)
    GPIO.output(18, GPIO.LOW)
    time.sleep(1)
    break
    #db.close()

    except Exception as e:
    print('Operation failed!')
    print('Exception message: ' + str(e))
    pass


    Any suggestion? Thanks









    share







    New contributor




    Chimenk is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.






















      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I'm creating some python script in Raspberry Pi to running fingerprint scan and compare it against database. Using this library, on raspberry start this script will get all the database record for fingerprint characteristics and the for loops will compare it. After getting about 100 records the loops is running very slow.



      import RPi.GPIO as GPIO
      import time
      import requests
      import hashlib
      import MySQLdb
      from pyfingerprint.pyfingerprint import PyFingerprint

      def connect():
      return MySQLdb.connect(host="192.168.1.1", user="root", passwd="123456", db="abc")

      GPIO.setmode(GPIO.BOARD)
      GPIO.setup(18, GPIO.OUT)
      GPIO.output(18, GPIO.LOW)

      try:
      f = PyFingerprint('/dev/ttyUSB1', 57600, 0xFFFFFFFF, 0x00000000)

      if ( f.verifyPassword() == False ):
      raise ValueError('The given fingerprint sensor password is wrong!')

      except Exception as e:
      print('The fingerprint sensor could not be initialized!')
      print('Exception message: ' + str(e))
      pass

      db = connect()
      cur = db.cursor()
      cur.execute("SELECT * FROM fingers")
      row = cur.fetchall()
      while True:
      try:
      print('Waiting for finger...')
      while(f.readImage() == False):
      pass

      f.convertImage(0x01)

      for ro in row:
      ss = eval(ro[2])
      f.uploadCharacteristics(0x02,eval(ss))
      if ( f.compareCharacteristics() == 0 ):
      #print('Fingers do not match')
      pass
      else:
      #print('Finger Match')
      GPIO.output(18, GPIO.HIGH)
      time.sleep(1)
      GPIO.output(18, GPIO.LOW)
      time.sleep(1)
      break
      #db.close()

      except Exception as e:
      print('Operation failed!')
      print('Exception message: ' + str(e))
      pass


      Any suggestion? Thanks









      share







      New contributor




      Chimenk is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      I'm creating some python script in Raspberry Pi to running fingerprint scan and compare it against database. Using this library, on raspberry start this script will get all the database record for fingerprint characteristics and the for loops will compare it. After getting about 100 records the loops is running very slow.



      import RPi.GPIO as GPIO
      import time
      import requests
      import hashlib
      import MySQLdb
      from pyfingerprint.pyfingerprint import PyFingerprint

      def connect():
      return MySQLdb.connect(host="192.168.1.1", user="root", passwd="123456", db="abc")

      GPIO.setmode(GPIO.BOARD)
      GPIO.setup(18, GPIO.OUT)
      GPIO.output(18, GPIO.LOW)

      try:
      f = PyFingerprint('/dev/ttyUSB1', 57600, 0xFFFFFFFF, 0x00000000)

      if ( f.verifyPassword() == False ):
      raise ValueError('The given fingerprint sensor password is wrong!')

      except Exception as e:
      print('The fingerprint sensor could not be initialized!')
      print('Exception message: ' + str(e))
      pass

      db = connect()
      cur = db.cursor()
      cur.execute("SELECT * FROM fingers")
      row = cur.fetchall()
      while True:
      try:
      print('Waiting for finger...')
      while(f.readImage() == False):
      pass

      f.convertImage(0x01)

      for ro in row:
      ss = eval(ro[2])
      f.uploadCharacteristics(0x02,eval(ss))
      if ( f.compareCharacteristics() == 0 ):
      #print('Fingers do not match')
      pass
      else:
      #print('Finger Match')
      GPIO.output(18, GPIO.HIGH)
      time.sleep(1)
      GPIO.output(18, GPIO.LOW)
      time.sleep(1)
      break
      #db.close()

      except Exception as e:
      print('Operation failed!')
      print('Exception message: ' + str(e))
      pass


      Any suggestion? Thanks







      python raspberry-pi





      share







      New contributor




      Chimenk is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










      share







      New contributor




      Chimenk is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.








      share



      share






      New contributor




      Chimenk is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked 3 mins ago









      Chimenk

      1




      1




      New contributor




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      New contributor





      Chimenk is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






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      Check out our Code of Conduct.



























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