opyalpr.py

import os

from ctypes import *
from numpy.ctypeslib import ndpointer

libPath = os.path.abspath(os.path.dirname(__file__)) + '/lib/libopyalprenv.so'
opyalprenv = cdll.LoadLibrary(libPath)

libPath = os.path.abspath(os.path.dirname(__file__)) + '/lib/libopyalpr.so'
opyalpr = cdll.LoadLibrary(libPath)

getHWID = opyalpr.getHWID
getHWID.argtypes = []
getHWID.restype = c_char_p

setLicenseKey = opyalpr.setLicenseKey
setLicenseKey.argtypes = [c_char_p]
setLicenseKey.restype = c_int32

initSDK = opyalpr.initSDK
initSDK.argtypes = [c_char_p]
initSDK.restype = c_int32

processImage = opyalpr.processImage
processImage.argtypes = [ndpointer(c_ubyte, flags='C_CONTIGUOUS'), c_int32, c_int32]
processImage.restype = c_char_p