add conf parameter to video prediction

app.py

@@ -175,7 +175,7 @@ def show_preds_video(video_path):
             height=img_res_toshow.shape[0]
             width=img_res_toshow.shape[1]
             dim=(width,height)
-            outputs = model.predict(source=img_res_toshow)
+            outputs = model.predict(source=img_res_toshow,conf=0.4)
             for object in range(len(outputs[0].masks.masks)):
                 #obtain BW image
                 bw=(outputs[0].masks.masks[object].cpu().numpy() * 255).astype("uint8")