import cv2
from arcaea_offline_ocr.device.ocr import DeviceOcr
from arcaea_offline_ocr.device.rois.definition import DeviceRoisAutoT2
from arcaea_offline_ocr.device.rois.extractor import DeviceRoisExtractor
from arcaea_offline_ocr.device.rois.masker import DeviceRoisMaskerAutoT2
from arcaea_offline_ocr.phash_db import ImagePhashDatabase

img_path = "/path/to/opencv/supported/image/formats.jpg"
img = cv2.imread(img_path, cv2.IMREAD_COLOR)

rois = DeviceRoisAutoT2(img.shape[1], img.shape[0])
extractor = DeviceRoisExtractor(img, rois)
masker = DeviceRoisMaskerAutoT2()

knn_model = cv2.ml.KNearest.load("/path/to/trained/knn/model.dat")
phash_db = ImagePhashDatabase("/path/to/image/phash/database.db")

ocr = DeviceOcr(extractor, masker, knn_model, phash_db)
print(ocr.ocr())