Update app.py

app.py

@@ -18,6 +18,16 @@ from detectron2.config import get_cfg
 import os, json, cv2, random
 from detectron2.utils.visualizer import Visualizer
 from detectron2.data import MetadataCatalog, DatasetCatalog
+import torch
+from detectron2.engine import DefaultPredictor
+from detectron2.config import get_cfg
+from detectron2 import model_zoo
+import cv2
+import numpy as np
+from PIL import Image
+from torchvision import transforms, models
+import torch.nn as nn
+from sklearn.metrics.pairwise import cosine_similarity
 
 device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')