Internal change

PiperOrigin-RevId: 389033478

official/vision/beta/tasks/maskrcnn.py

@@ -261,12 +261,15 @@ class MaskRCNNTask(base_task.Task):
         metrics.append(tf.keras.metrics.Mean(name, dtype=tf.float32))
 
     else:
-      if self._task_config.annotation_file:
+      if (not self._task_config.model.include_mask
+         ) or self._task_config.annotation_file:
         self.coco_metric = coco_evaluator.COCOEvaluator(
             annotation_file=self._task_config.annotation_file,
             include_mask=self._task_config.model.include_mask,
             per_category_metrics=self._task_config.per_category_metrics)
       else:
+        # Builds COCO-style annotation file if include_mask is True, and
+        # annotation_file isn't provided.
         annotation_path = os.path.join(self._logging_dir, 'annotation.json')
         if tf.io.gfile.exists(annotation_path):
           logging.info(