How to set OpenCV environment variables to open advanced configurations of OpenCV

[GodOMG]

By consulting OpenCV, it was found that the function can be configured through environment variables

OpenCV document https://docs.opencv.org/4.10.0/d6/dea/tutorial_env_reference.html

Environment

win 10 64bit
.NET 8
opencvsharp 4.10.0.20240616

Problem

I tried the following code to configure OpenCV, but it didn't work. According to the documentation and code of OpenCV, if the log is enabled, it should display the output window during Visual Studio debugging and the bitrate during video recording.

Cv2.SetLogLevel(LogLevel.DEBUG);

Environment.SetEnvironmentVariable("OPENCV_LOG_LEVEL", "DEBUG");
Environment.SetEnvironmentVariable("OPENCV_VIDEOIO_DEBUG", "1");

Environment.SetEnvironmentVariable("OPENCV_FFMPEG_WRITER_OPTIONS", "bitrate;1000");