Update app.py

app.py

@@ -30,6 +30,7 @@ def predict(
     predictor = DefaultPredictor(cfg)
     im = cv2.imread(img.name)
     output = predictor(im)
+    output = cv2.cvtColor(output, cv2.COLOR_BGR2RGB)
     img = add_bboxes(im, output['instances'].pred_boxes, scores=output['instances'].scores)
     return img