From 272d9ed5bfaf653be28b7e1e080cbe69923c23ff Mon Sep 17 00:00:00 2001
From: Ernest Lim <ernestlimwoonteng@gmail.com>
Date: Thu, 16 Oct 2025 16:12:28 +0800
Subject: [PATCH] fix: Overlapmetric should check string using uppercase
 conversion

---
 supervision/detection/utils/iou_and_nms.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/supervision/detection/utils/iou_and_nms.py b/supervision/detection/utils/iou_and_nms.py
index 1a6f80bc5..1eccd34b1 100644
--- a/supervision/detection/utils/iou_and_nms.py
+++ b/supervision/detection/utils/iou_and_nms.py
@@ -72,7 +72,7 @@ def from_value(cls, value: OverlapMetric | str) -> OverlapMetric:
         if isinstance(value, cls):
             return value
         if isinstance(value, str):
-            value = value.lower()
+            value = value.upper()
             try:
                 return cls(value)
             except ValueError: