import cv2 as cv
import pytesseract as pts

pts.pytesseract.tesseract_cmd = "C:\\Program Files\\Tesseract-OCR\\tesseract.exe"

img = cv.imread("kolya.png")
img = cv.cvtColor(img, cv.COLOR_BGR2GRAY)
ret, threshold_image = cv.threshold(img, 127, 255, 0)
cv.imshow("result", img)
cv.waitKey(0)
config = r'--oem 3 --psm 6'

print(pts.image_to_string(img, lang="rus", config=config))