diff --git a/modules/photo/src/hdr_common.cpp b/modules/photo/src/hdr_common.cpp
index 83e1686c38..70b24322b1 100644
--- a/modules/photo/src/hdr_common.cpp
+++ b/modules/photo/src/hdr_common.cpp
@@ -66,13 +66,12 @@ Mat triangleWeights()
     int half   = LDR_SIZE / 2;
     int maxVal = LDR_SIZE - 1;
     float epsilon = 1e-6f;
-    for (int i = 0; i < LDR_SIZE; i++){
-        float val = (i < half)
+    w.at<float>(0) = epsilon;
+    w.at<float>(LDR_SIZE-1) = epsilon;
+    for (int i = 1; i < LDR_SIZE-1; i++){
+        w.at<float>(i) = (i < half)
             ? static_cast<float>(i)
             : static_cast<float>(maxVal - i);
-        if (val < epsilon)
-            val = epsilon;
-        w.at<float>(i) = val;
     }
     return w;
 }