From 5680c432cdff1d82ef0f276f4c605d9cf3453c6b Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Sat, 25 Sep 2021 07:48:57 +0200
Subject: tracker/pt: cv::merge -> cv::cvtColor

---
 tracker-pt/module/frame.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tracker-pt/module/frame.cpp b/tracker-pt/module/frame.cpp
index 9247212b..b8f2b7cb 100644
--- a/tracker-pt/module/frame.cpp
+++ b/tracker-pt/module/frame.cpp
@@ -14,8 +14,7 @@ Preview& Preview::operator=(const pt_frame& frame_)
     if (frame2.channels() == 1)
     {
         frame_tmp.create(frame2.rows, frame2.cols, CV_8UC3);
-        const cv::Mat channels[] = { frame2, frame2, frame2 };
-        cv::merge(channels, std::size(channels), frame_tmp);
+        cv::cvtColor(frame2, frame_tmp, cv::COLOR_GRAY2BGR);
         frame = &frame_tmp;
     }
     else
-- 
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