can't read QRcode in large file

[simoneek]

Hello,

I want to read the position of 4QRcode. When I use the picture"QRcode2.png" I find 2 QRcode (result : OK). But when I print this same QRcode and scan the sheet (file : capture1.jpg) I read only 1 QRcode on the 4.

Here the file :
https://we.tl/t-3Yv0sZRzmI

Here the code :

import cv2
import matplotlib.pyplot as plt    
import math
import numpy as np

image = cv2.imread("png.png")
#image = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)

qrCodeDetector = cv2.QRCodeDetector()
points = qrCodeDetector.detectMulti(image)
#decodedText, points, _ = qrCodeDetector.detectAndDecode(image)
QRnumero = 0
print("point")
print(points)

Do you have any idea ?