Reading Barcode data

Hello everyone
I have an idea to use Linuxcnc to process the outer edges of the board with the X and Y position, but I want to read the barcode that contains the X and Y values ​​and automatically start the processing, does anyone have an idea how to do it

Yes, you would need to digitize the barcode and opencv sounds as good as any. It may have a barcode parser.
To do it yourself you would first need to determine the barcode symbology
There is a phone app called Barcode Data Decoder which will do this.
assuming a 2D symbology, barcodes usually have a start and a stop sequence. Barcode characters are made up of bars and spaces. These are defined as being multiples of the narrow bar width. If you are generating barcodes on a Zebra ZPL printer like I do, the narrow bar is defined as being 1,2 or 3 pixels wide (@203 dpi). Wider barcodes are easier to read. 1 pixel wide narrow bar is nearly impossible to read.

So then you can study up on your symbology and understand its structure.
If you are choosing the symbology, CODE39 is probably the easiest to parse at a low level but its not very compact. Code 128 is more compact but  harder to parse. ref: en.wikipedia.org/wiki/Code_39

An alternative could be to use a barcode scanner. These will plug into your computer as a HID keyboard device. There are some small barcode modules that are RS232 devices. www.aliexpress.com/item/1005007002453623...OfpGuWBoClGYQAvD_BwE

Forgot OpenCV, and use a barcode scanner.
I do this way to scan the worksheet and load the G-Code according to the type of part which I need to machine. The bar code scanner act as a keyboard, and I use a few python in the handler.py file to get what I need.

Hastrh2o Can you share and example? Thanks a lot. 

I was a bit busy with other work, so I didn't respond to your answers earlier.
The barcode has 2 series of numbers with 5 characters x+y, I can do that in the plc controller, but only the positioning is the hardest part for me, that's why I thought that maybe there is a solution, for example in linuxcnc, which is much better for positioning.

@noqui

In the ui, I add a lineEdit wich I named "ofedit" (and some more) and then in qtaxis_handler.py I add (the except part is just here to allow me to try without the thrue work order barcode) :

def ofedit_changed(self):
if len(self.w.lineEdit.text()) == 16:
try:
codesData = pd.read_csv('codes_articles.csv', index_col=0)
self.w.lineEdit_3.setText(self.w.lineEdit.text()[0:16])
self.w.lineEdit_2.setText(codesData.loc[self.w.lineEdit_3.text(), "Variante"])
except :
self.w.lineEdit.setText("EJEVAP17050---M")
self.w.lineEdit_2.setText("")
self.w.lineEdit_3.setText("")
pass

This allow to look into a csv file for the work order code if I read something which is 16 caracters long with the barcode reader