OpenCVDemo/ImageOcr/ImageOcr.csproj

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp3.1</TargetFramework>
  </PropertyGroup>
  <ItemGroup>
    <PackageReference Include="OpenCvSharp4" Version="4.4.0.20200915" />
  </ItemGroup>
</Project>