image = cv2.imread(args["image"])
gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
gray = cv2.resize(gray, None, fx=2, fy=2, interpolation=cv2.INTER_CUBIC)

if args["preprocess"] == "thresh":
           gray = cv2.threshold(gray, 0, 255,
                        cv2.THRESH_BINARY | cv2.THRESH_OTSU)[1]

elif args["preprocess"] == "blur":
                gray = cv2.medianBlur(gray, 3)
filename = "Screens/{}.png".format(os.getpid())

cv2.imwrite(filename, gray)
text = pytesseract.image_to_string(Image.open(filename), lang='vie')