W&B updates (#2895)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

ultralytics/yolo/utils/callbacks/wb.py

@@ -1,5 +1,4 @@
 # Ultralytics YOLO 🚀, AGPL-3.0 license
-
 from ultralytics.yolo.utils import TESTS_RUNNING
 from ultralytics.yolo.utils.torch_utils import model_info_for_loggers
 
@@ -11,6 +10,16 @@ try:
 except (ImportError, AssertionError):
     wb = None
 
+_processed_plots = {}
+
+
+def _log_plots(plots, step):
+    for name, params in plots.items():
+        timestamp = params['timestamp']
+        if _processed_plots.get(name, None) != timestamp:
+            wb.run.log({name.stem: wb.Image(str(name))}, step=step)
+            _processed_plots[name] = timestamp
+
 
 def on_pretrain_routine_start(trainer):
     """Initiate and start project if module is present."""
@@ -20,6 +29,8 @@ def on_pretrain_routine_start(trainer):
 def on_fit_epoch_end(trainer):
     """Logs training metrics and model information at the end of an epoch."""
     wb.run.log(trainer.metrics, step=trainer.epoch + 1)
+    _log_plots(trainer.plots, step=trainer.epoch + 1)
+    _log_plots(trainer.validator.plots, step=trainer.epoch + 1)
     if trainer.epoch == 0:
         wb.run.log(model_info_for_loggers(trainer), step=trainer.epoch + 1)
 
@@ -29,13 +40,13 @@ def on_train_epoch_end(trainer):
     wb.run.log(trainer.label_loss_items(trainer.tloss, prefix='train'), step=trainer.epoch + 1)
     wb.run.log(trainer.lr, step=trainer.epoch + 1)
     if trainer.epoch == 1:
-        wb.run.log({f.stem: wb.Image(str(f))
-                    for f in trainer.save_dir.glob('train_batch*.jpg')},
-                   step=trainer.epoch + 1)
+        _log_plots(trainer.plots, step=trainer.epoch + 1)
 
 
 def on_train_end(trainer):
     """Save the best model as an artifact at end of training."""
+    _log_plots(trainer.validator.plots, step=trainer.epoch + 1)
+    _log_plots(trainer.plots, step=trainer.epoch + 1)
     art = wb.Artifact(type='model', name=f'run_{wb.run.id}_model')
     if trainer.best.exists():
         art.add_file(trainer.best)

ultralytics/yolo/utils/metrics.py

@@ -707,8 +707,14 @@ class DetMetrics(SimpleClass):
 
     def process(self, tp, conf, pred_cls, target_cls):
         """Process predicted results for object detection and update metrics."""
-        results = ap_per_class(tp, conf, pred_cls, target_cls, plot=self.plot, save_dir=self.save_dir,
-                               names=self.names)[2:]
+        results = ap_per_class(tp,
+                               conf,
+                               pred_cls,
+                               target_cls,
+                               plot=self.plot,
+                               save_dir=self.save_dir,
+                               names=self.names,
+                               on_plot=self.on_plot)[2:]
         self.box.nc = len(self.names)
         self.box.update(results)