For mmdetection, how can i get the prediction box which is be processed by NMS?

[FengRongYue]

How can i get the detection result after NMS?
When i run "tools/test.py ....... --out result.pkl", the result.pkl file contains 300 detection boxes for each image. How can i get the detection box processed by NMS, i.e., the correct detection result?
当我运行"tools/test.py..... --out result.okl"的时候，我得到的检测结果文件中的检测结果是未经过NMS处理的结果，我怎样才能输出经过NMS处理过的结果呢？

The image is obtained by a parse programe for result.pkl.
这个图像来自于一个解析result.pkl文件的程序，可以看到图像中有300个检测框。