I need to get the information in the below barcode with the Python `pyzbar` library, but it does not recognize it. Should I make any improvement before using `pyzbar`?

![BarCode](https://i.stack.imgur.com/D8Jk7.jpg)

this is the code:

```
from pyzbar.pyzbar import decode
import cv2

    def barcodeReader(image):
        gray_img = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
        barcodes = decode(gray_img)

    barcode = barcodeReader("My_image")
    print (barcode)

```

> 
> Result: []
> 
> 
>