Update app.py

app.py

@@ -18,11 +18,8 @@ import os, json, random
 from detectron2 import model_zoo
 from detectron2.engine import DefaultPredictor
 from detectron2.config import get_cfg
-from detectron2.utils.visualizer import Visualizer, ColorMode
-from detectron2.data import MetadataCatalog, DatasetCatalog
 from PIL import Image
 from pathlib import Path
-from detectron2.data.datasets import register_coco_instances
 from matplotlib import pyplot as plt