From 9198e306884f11b5461fa17ff7385d7da775aa01 Mon Sep 17 00:00:00 2001
From: KaurkerDevourer <styopkin@yandex-team.ru>
Date: Fri, 11 Feb 2022 14:38:48 +0300
Subject: [PATCH] Fix DpSeamFinder::hasOnlyOneNeighbor

std::lower_bound is linear for set
https://en.cppreference.com/w/cpp/algorithm/lower_bound
---
 modules/stitching/src/seam_finders.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/modules/stitching/src/seam_finders.cpp b/modules/stitching/src/seam_finders.cpp
index c8a320dc74..a19f5a6cfc 100644
--- a/modules/stitching/src/seam_finders.cpp
+++ b/modules/stitching/src/seam_finders.cpp
@@ -554,8 +554,8 @@ void DpSeamFinder::computeGradients(const Mat &image1, const Mat &image2)
 bool DpSeamFinder::hasOnlyOneNeighbor(int comp)
 {
     std::set<std::pair<int, int> >::iterator begin, end;
-    begin = lower_bound(edges_.begin(), edges_.end(), std::make_pair(comp, std::numeric_limits<int>::min()));
-    end = upper_bound(edges_.begin(), edges_.end(), std::make_pair(comp, std::numeric_limits<int>::max()));
+    begin = edges_.lower_bound(std::make_pair(comp, std::numeric_limits<int>::min()));
+    end = edges_.upper_bound(std::make_pair(comp, std::numeric_limits<int>::max()));
     return ++begin == end;
 }