diff --git a/etrack/util.py b/etrack/util.py
index d4a29ba..f61946f 100644
--- a/etrack/util.py
+++ b/etrack/util.py
@@ -20,3 +20,7 @@ class AnalysisType(Enum):
 
     def __str__(self) -> str:
         return self.name
+
+class PositionType(Enum):
+    Absolute = 0
+    Cropped = 1
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