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import pyzbar.pyzbar as pyzbar
import numpy
from PIL import Image, ImageDraw, ImageFont
import cv2 as cv
frame = cv.imread("C:/Users/lzx/Desktop/ppic/123.png")
# 转为灰度图像
gray = cv.cvtColor(frame, cv.COLOR_BGR2GRAY)
# cv2.imshow("a",gray)
# cv2.waitKey(0)
# cv2.destroyAllWindows()
barcodes = pyzbar.decode(gray)
print(barcodes)
print输出的是none,正常应该是解码的结果,怎么办,后续就无法迭代
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