disable sink candidates after local gas label test notebooks/colab_gas_valve_auto_label_train.py

notebooks/colab_gas_valve_auto_label_train.py

@@ -305,7 +305,8 @@ class GasCylinderSegmenter:
         72: 1.1,   # refrigerator, often matches large partial cylinders
         41: 0.7,   # cup
         56: 0.5,   # chair
-        71: 0.25,  # sink is noisy; keep only if geometry is strong
+        # 71 sink is intentionally disabled: on the added gas images it
+        # frequently locks onto bottom-left background/fixture regions.
     }
 
     def __init__(self, model_path: str = "yolo11x-seg.pt", class_id: int = 0) -> None: