This is a sample code to calibrate camera using opencvsharp4. I used the NuGet package "OpenCvSharp4.Windows" verson: 4.5.2.20210404 in Visual Studio 2019 I recommend you to use latest version of ...

Tried both OpenCvSharp4 + OpenCvSharp4.runtime.win and OpenCvSharp4.Windows. Just changing back from 4 to 3 version by NuGet solve the problem (app works, dll folder contains necessary DLLs). Look ...