From 400572b19f01ebda905c828c6ed43d61156c4de7 Mon Sep 17 00:00:00 2001
From: whuaegeansea <whuaegeansea@gmail.com>
Date: Wed, 1 Feb 2023 01:34:22 +0800
Subject: [PATCH] Fix bug

---
 modules/features2d/src/sift.simd.hpp | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/modules/features2d/src/sift.simd.hpp b/modules/features2d/src/sift.simd.hpp
index d2fe0bb429..70f773b7bd 100644
--- a/modules/features2d/src/sift.simd.hpp
+++ b/modules/features2d/src/sift.simd.hpp
@@ -850,7 +850,6 @@ else // CV_8U
 #endif
 }
 #else
-    float* dst = dstMat.ptr<float>(row);
     float nrm1 = 0;
     for( k = 0; k < len; k++ )
     {
@@ -858,20 +857,22 @@ else // CV_8U
         nrm1 += rawDst[k];
     }
     nrm1 = 1.f/std::max(nrm1, FLT_EPSILON);
-if( dstMat.type() == CV_32F )
-{
-    for( k = 0; k < len; k++ )
+    if( dstMat.type() == CV_32F )
     {
-        dst[k] = std::sqrt(rawDst[k] * nrm1);
+        float *dst = dstMat.ptr<float>(row);
+        for( k = 0; k < len; k++ )
+        {
+            dst[k] = std::sqrt(rawDst[k] * nrm1);
+        }
     }
-}
-else // CV_8U
-{
-    for( k = 0; k < len; k++ )
+    else // CV_8U
     {
-        dst[k] = saturate_cast<uchar>(std::sqrt(rawDst[k] * nrm1)*SIFT_INT_DESCR_FCTR);
+        uint8_t *dst = dstMat.ptr<uint8_t>(row);
+        for( k = 0; k < len; k++ )
+        {
+            dst[k] = saturate_cast<uchar>(std::sqrt(rawDst[k] * nrm1)*SIFT_INT_DESCR_FCTR);
+        }
     }
-}
 #endif
 }
 
-- 
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