#coding:utf-8
'''
通过摄像头识别一维条形码
'''
import cv2
from pyzbar.pyzbar import decode
# results = decode(cv2.imread('datas/images/barcode-3.jpg'))
# for result in results:
# print('barcode = %s'% str(result.data))
cap = cv2.VideoCapture(0)
if not cap.isOpened():
print('cannot open camera 0')
exit(0)
while True:
ret,frame = cap.read()
if not ret:
print('cannot grab frame from camera')
continue
results = decode(frame)
for result in results:
print('barcode = %s' % result.data)
barcode_roi = frame[result.rect.left:result.rect.width,result.rect.top:result.rect.height]
cv2.imshow('barcode:%s' % result.data,barcode_roi)
cv2.imshow('camera',frame)
key = cv2.waitKey(10)
if key == 27:
break
cv2.destroyAllWindows()
Python实例:通过摄像头实时识别一维条形码
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