我试图制作一个Tkinter GUI来显示我的条形码阅读器并显示在同一窗口中检测到的条形码。在其他帖子中,我已经研究了如何将OpenCV与Tkinter一起使用,并且仅设法显示了网络摄像头,但无法使其显示条形码扫描仪。任何帮助将不胜感激。由于我是新来的,请放心。提前致谢。 杰克
import cv2
import time
from imutils.video import VideoStream
from pyzbar import pyzbar
import argparse
import imutils
# construct the argument parser and parse the arguments
ap = argparse.ArgumentParser()
ap.add_argument("-o", "--output", type=str, default="barcodes.csv",
help="path to output CSV file containing barcodes")
args = vars(ap.parse_args())
# initialize the video stream and allow the camera sensor to warm up
print("[INFO] starting video stream...")
vs = VideoStream(src=0).start()
# vs = VideoStream(usePiCamera=True).start()
time.sleep(2.0)
# open the output CSV file for writing and initialize the set of
# barcodes found thus far
csv = open(args["output"], "w")
found = set()
while True:
# grab the frame from the threaded video stream and resize it to
# have a maximum width of 400 pixels
frame = vs.read()
frame = imutils.resize(frame, width=1000)
# find the barcodes in the frame and decode each of the barcodes
barcodes = pyzbar.decode(frame)
# loop over the detected barcodes
for barcode in barcodes:
# extract the bounding box location of the barcode and draw
# the bounding box surrounding the barcode on the image
(x, y, w, h) = barcode.rect
cv2.rectangle(frame, (x, y), (x + w, y + h), (0, 0, 255), 2)
# the barcode data is a bytes object so if we want to draw it
# on our output image we need to convert it to a string first
barcodeData = barcode.data.decode("utf-8")
barcodeType = barcode.type
# draw the barcode data and barcode type on the image
text = "{} ({})".format(barcodeData, barcodeType)
cv2.putText(frame, text, (x, y - 10),
cv2.FONT_HERSHEY_SIMPLEX, 0.5, (0, 0, 255), 2)
# if the barcode text is currently not in our CSV file, write
# the timestamp + barcode to disk and update the set
if barcodeData not in found:
csv.write(barcodeData + "\n")
csv.flush()
found.add(barcodeData)
# show the output frame
cv2.imshow("Barcode Scanner", frame)
key = cv2.waitKey(1) & 0xFF
# if the `q` key was pressed, break from the loop
if key == ord("q"):
break
# close the output CSV file do a bit of cleanup
print("[INFO] cleaning up...")
csv.close()
cv2.destroyAllWindows()
vs.stop()