Implemetation of "include_metrics_per_category" in "eval_config" of tensorflow object detection api.Three code additions are listed below: 1.addtion in "tensorflow/models/research/pycocotools/cocoeval.py":from line 499 to line 648 2.addtion in "tensorflow/models/research/object_detetcion/metrics/coco_tools.py":from line 240 to line 244 3.add { metrics_set: "coco_detection_metrics" include_metrics_per_category: true } to "eval_config" part in pipeline config file. The code changes are only tested in my code to train a "fastrcnn_resnet_101" model. You should see per category metrics stats in tensorboard if they work. Any feedback would be appreciated.