From 4091ced5aba3224fa72ffe077b93bc003ec7e298 Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.alekhin@intel.com>
Date: Tue, 5 Jun 2018 12:40:43 +0300
Subject: [PATCH] core: set default logger level to 'warning' in Release builds

should hide unnecessary 'info' messages
---
 modules/core/src/logger.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/modules/core/src/logger.cpp b/modules/core/src/logger.cpp
index b6c076e2b5..e7c6669242 100644
--- a/modules/core/src/logger.cpp
+++ b/modules/core/src/logger.cpp
@@ -21,7 +21,13 @@ namespace logging {
 
 static LogLevel parseLogLevelConfiguration()
 {
-    static cv::String param_log_level = utils::getConfigurationParameterString("OPENCV_LOG_LEVEL", "INFO");
+    static cv::String param_log_level = utils::getConfigurationParameterString("OPENCV_LOG_LEVEL",
+#if defined NDEBUG
+            "WARNING"
+#else
+            "INFO"
+#endif
+    );
     if (param_log_level == "DISABLED" || param_log_level == "disabled" ||
         param_log_level == "0" || param_log_level == "OFF" || param_log_level == "off")
         return LOG_LEVEL_SILENT;