Real time OCR in python

The problem

Im trying to capture my desktop with OpenCV and have Tesseract OCR find text and set it as a variable, for example, if I was going to play a game and have the capturing frame over a resource amount, I want it to print that and use it. A perfect example of this is a video by Micheal Reeves where whenever he loses health in a game it shows it and sends it to his Bluetooth enabled airsoft gun to shoot him. So far I have this:

# imports
from PIL import ImageGrab
from PIL import Image
import numpy as np
import pytesseract
import argparse
import cv2
import os

fourcc = cv2.VideoWriter_fourcc(*'XVID')
out = cv2.VideoWriter("output.avi", fourcc, 5.0, (1366, 768))

while(True):
        x = 760
        y = 968

        ox = 50
        oy = 22

        # screen capture
        img = ImageGrab.grab(bbox=(x, y, x + ox, y + oy))
        img_np = np.array(img)
        frame = cv2.cvtColor(img_np, cv2.COLOR_BGR2RGB)
        cv2.imshow("Screen", frame)
        out.write(frame)

        if cv2.waitKey(1) == 0:
                break

out.release()
cv2.destroyAllWindows()

it captures real-time and displays it in a window but I have no clue how to make it recognise the text every frame and output it.

any help?

from Real time OCR in python