Didson fix

backend/inference.py

@@ -207,6 +207,8 @@ def format_predictions(image_shapes, outputs, width, height, gp=None, batch_size
         gp: a callback function which takes as input 1 parameter, (int) percent complete
         prep_for_marking: re-index fish for manual marking output
     """
+    real_width = image_shapes[0][0][1][0][1]
+    real_height = image_shapes[0][0][1][0][0]
     
     if (gp): gp(0, "Formatting...")
     # keep predictions to feed them ordered into the Tracker