diff --git a/tools/rknpu2/config/Portrait_PP_HumanSegV2_Lite_256x144_infer.yaml b/tools/rknpu2/config/Portrait_PP_HumanSegV2_Lite_256x144_infer.yaml
index ee5c7212ca..d18274c292 100644
--- a/tools/rknpu2/config/Portrait_PP_HumanSegV2_Lite_256x144_infer.yaml
+++ b/tools/rknpu2/config/Portrait_PP_HumanSegV2_Lite_256x144_infer.yaml
@@ -1,15 +1,15 @@
 mean:
   -
-    - 128.5
-    - 128.5
-    - 128.5
+    - 127.5
+    - 127.5
+    - 127.5
 std:
   -
-    - 128.5
-    - 128.5
-    - 128.5
+    - 127.5
+    - 127.5
+    - 127.5
 model_path: ./Portrait_PP_HumanSegV2_Lite_256x144_infer/Portrait_PP_HumanSegV2_Lite_256x144_infer.onnx
 outputs_nodes:
 do_quantization: True
 dataset: "./Portrait_PP_HumanSegV2_Lite_256x144_infer/dataset.txt"
-output_folder: "./Portrait_PP_HumanSegV2_Lite_256x144_infer"
\ No newline at end of file
+output_folder: "./Portrait_PP_HumanSegV2_Lite_256x144_infer"
diff --git a/tools/rknpu2/config/picodet_s_416_coco_lcnet.yaml b/tools/rknpu2/config/picodet_s_416_coco_lcnet.yaml
index 743bb04835..2cbc7068d1 100644
--- a/tools/rknpu2/config/picodet_s_416_coco_lcnet.yaml
+++ b/tools/rknpu2/config/picodet_s_416_coco_lcnet.yaml
@@ -1,13 +1,13 @@
 mean:
   -
-    - 128.5
-    - 128.5
-    - 128.5
+    - 127.5
+    - 127.5
+    - 127.5
 std:
   -
-    - 128.5
-    - 128.5
-    - 128.5
+    - 127.5
+    - 127.5
+    - 127.5
 model_path: ./picodet_s_416_coco_lcnet/picodet_s_416_coco_lcnet.onnx
 outputs_nodes:
 do_quantization: False
diff --git a/tools/rknpu2/config/scrfd_quantized.yaml b/tools/rknpu2/config/scrfd_quantized.yaml
index 58b6f0b090..4993061636 100644
--- a/tools/rknpu2/config/scrfd_quantized.yaml
+++ b/tools/rknpu2/config/scrfd_quantized.yaml
@@ -1,13 +1,13 @@
 mean:
   -
-    - 128.5
-    - 128.5
-    - 128.5
+    - 127.5
+    - 127.5
+    - 127.5
 std:
   -
-    - 128.5
-    - 128.5
-    - 128.5
+    - 127.5
+    - 127.5
+    - 127.5
 model_path: ./scrfd_500m_bnkps_shape640x640.onnx
 outputs_nodes:
 do_quantization: True
diff --git a/tools/rknpu2/config/scrfd_unquantized.yaml b/tools/rknpu2/config/scrfd_unquantized.yaml
index 11a434eca8..f3466b519b 100644
--- a/tools/rknpu2/config/scrfd_unquantized.yaml
+++ b/tools/rknpu2/config/scrfd_unquantized.yaml
@@ -1,13 +1,13 @@
 mean:
   -
-    - 128.5
-    - 128.5
-    - 128.5
+    - 127.5
+    - 127.5
+    - 127.5
 std:
   -
-    - 128.5
-    - 128.5
-    - 128.5
+    - 127.5
+    - 127.5
+    - 127.5
 model_path: ./scrfd_500m_bnkps_shape640x640.onnx
 outputs_nodes:
 do_quantization: False