diff --git a/AlgorithmModule/src/AI_Edge_Algin.cpp b/AlgorithmModule/src/AI_Edge_Algin.cpp
index 76f3dc9..52375e4 100644
--- a/AlgorithmModule/src/AI_Edge_Algin.cpp
+++ b/AlgorithmModule/src/AI_Edge_Algin.cpp
@@ -246,7 +246,8 @@ int AI_Edge_Algin::Detect(const cv::Mat &img, DetConfig *pDetConfig, std::shared
         }
         return re;
     }
-    re = Get_Edge(1, img, pDetConfig, m_pDetConfig->strChannel, Small_roi);
+    cv::Mat Big_outimg_src = img(Big_roi.boundingRect()).clone();
+    re = Get_Edge(1, Big_outimg_src, pDetConfig, m_pDetConfig->strChannel, Small_roi);
     if (re != 0)
     {
         m_pdetlog->AddCheckstr(PrintLevel_2, DET_LOG_LEVEL_3, "AI_Edge_Algin ", "AICheck_Edge_Small----error  %d ", re);