From 2364f4b0b9a4f38dc4b8ecb4b8af00f98fd9b45c Mon Sep 17 00:00:00 2001
From: Kababey <117941072+Kababey@users.noreply.github.com>
Date: Tue, 11 Feb 2025 13:30:48 +0300
Subject: [PATCH] Update optical_flow.cpp

ref: push_back is changed to emplace_back in order to avoid unnecessary conversions [Scalar(r, g, b))] .
---
 samples/cpp/tutorial_code/video/optical_flow/optical_flow.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/samples/cpp/tutorial_code/video/optical_flow/optical_flow.cpp b/samples/cpp/tutorial_code/video/optical_flow/optical_flow.cpp
index 0394c6abd4..eb08eee4a5 100644
--- a/samples/cpp/tutorial_code/video/optical_flow/optical_flow.cpp
+++ b/samples/cpp/tutorial_code/video/optical_flow/optical_flow.cpp
@@ -46,7 +46,7 @@ int main(int argc, char **argv)
         int r = rng.uniform(0, 256);
         int g = rng.uniform(0, 256);
         int b = rng.uniform(0, 256);
-        colors.push_back(Scalar(r,g,b));
+        colors.emplace_back(r,g,b);
     }
 
     Mat old_frame, old_gray;