how to get mAP and precision and recall values for tensorflow object detection API?

[angyee]

System information

What is the top-level directory of the model you are using object detection
Have I written custom code NA
OS Platform and Distribution Linux Ubuntu 18.0
TensorFlow installed from pip3 install tensorflow-gpu
TensorFlow version 1.14
Bazel version NA
CUDA/cuDNN version 10.0
GPU model and memory nvidia 2080ti 12gb
Exact command to reproduce
how to get mAP and precision and recall values for tensorflow object detection API?

I have created a custom TensorFlow object detection api, now I want to get the
values of mAP and precision and recall? how?

[am-shubh]

I am also looking for ways to extract mAP values and other metrics when I do training with Tensorflow Object detection API. When Running tensorboard in the training directory, we can visualize it but I need to store it in some log files. How can I achieve it?