最近项目中用到二维码图片识别，在python下二维码识别，目前主要有三个模块：zbar 、zbarlight、zxing。
1、三个模块的用法：
#-*-coding=utf-8-*-import os
import loggingimport zbar
from PIL import Image
import zxingimport randomimport zbarlight
logger=logging.getLogger(__name__)if not logger.handlers :logging.basicConfig(level=logging.INFO)
DEBUG= (logging.getLevelName(logger.getEffectiveLevel())=='DEBUG')
def ocr_qrcode_zbar(filename):
img=Image.open(filename)
width, height = img.size
raw = img.tobytes()
scanner = zbar.ImageScanner()
scanner.parse_config('enable') #把图像装换成数据zarimage = zbar.Image(width, height, 'Y800', raw) #扫描器进行扫描 scanner.scan(zarimage)
data = '' for symbol in zarimage:# 对结果进行一些有用的处理data += symbol.data if data:
logger.debug(u'识别二维码:%s,内容: %s' %(filename ,data))else:
logger.error(u'识别zbar二维码出错:%s' %(filename))
img.save('%s-zbar.jpg' %filename) return data
def ocr_qrcode_zbarlight(filename):
img=Image.open(filename)
width, height = img.size
raw = img.tobytes() #把图像装换成数据data = zbarlight.qr_code_scanner(raw, width, height) if data:
logger.debug(u'识别二维码:%s,内容: %s' %(filename ,data))else:
logger.error(u'识别zbarlight二维码出错:%s' %(filename))
img.save('%s-zbar.jpg' %filename) return data
def ocr_qrcode_zxing(filename):#在当前目录生成临时文件，规避java的路径问题img= Image.open(filename)
ran= int(random.random()*100000)
img.save('%s%s.jpg' %(os.path.basename(filename).split('.')[0],ran))
zx = zxing.BarCodeReader()
data =''zxdata = zx.decode('%s%s.jpg' %(os.path.basename(filename).split('.')[0],ran))#删除临时文件os.remove('%s%s.jpg' %(os.path.basename(filename).split('.')[0],ran))if zxdata:
logger.debug(u'zxing识别二维码:%s,内容: %s' %(filename ,zxdata.data))
data = zxdata.dataelse:
logger.error(u'识别zxing二维码出错:%s' %(filename))
img.save('%s-zxing.jpg' %filename) return data
if __name__ == '__main__':
filename =r'D:python
