# coding:utf8
import cv2
import pyzbar.pyzbar as pyzbar
def decodeDisplay(image):
barcodes = pyzbar.decode(image)
for barcode in barcodes:
# 提取条形码的边界框的位置
# 画出图像中条形码的边界框
(x, y, w, h) = barcode.rect
cv2.rectangle(image, (x, y), (x + w, y + h), (0, 0, 255), 2)
# 条形码数据为字节对象，所以如果我们想在输出图像上
# 画出来，就需要先将它转换成字符串
barcodeData = barcode.data.decode("utf-8")
barcodeType = barcode.type
# 绘出图像上条形码的数据和条形码类型
text = "{} ({})".format(barcodeData, barcodeType)
cv2.putText(image, text, (x, y - 10), cv2.FONT_HERSHEY_SIMPLEX,
.5, (0, 0, 125), 2)
# 向终端打印条形码数据和条形码类型
print("[INFO] Found {} barcode: {}".format(barcodeType, barcodeData))
return image
def detect():
camera = cv2.VideoCapture(0)
while True:
# 读取当前帧
ret, frame = camera.read()
# 转为灰度图像
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
im=decodeDisplay(gray)
cv2.waitKey(5)
cv2.imshow("camera", im)
camera.release()
cv2.destroyAllWindows()
if __name__ == '__main__':
detect()
