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Computer Vision Implementation Guide

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Overview of Available Packages

Our SDK provides two NuGet packages that deliver computer-vision capabilities for your applications:

  1. VisioForge.DotNet.Core.CV — CV package for Windows x64, macOS on Apple Silicon and Linux x64.
  2. VisioForge.DotNet.Core.CVD — Cross-platform CV package for Windows, Linux, and macOS.

Both packages provide a consistent API for integrating computer-vision features directly into your .NET applications.

Deployment Requirements

CV Package

Installation Process

The CV package carries the native OpenCV library for each supported platform:

  • Simply install the NuGet package through your preferred package manager
  • No additional deployment steps are necessary on Windows and macOS
  • On Linux, the native library needs GTK 3. Desktop installations include it; on a server, minimal or container image, install it with sudo apt-get install libgtk-3-0 (Ubuntu/Debian) or sudo dnf install gtk3 (RHEL/AlmaLinux)
  • An app on a plain .NET target framework (for example net8.0) receives the native libraries for every supported OS; publish with dotnet publish -r <rid> (for example -r linux-x64) to keep only the one it runs on
  • 32-bit Windows, Intel Macs, Mac Catalyst, iOS and Android are not supported

Cross-Platform CVD Package

Our cross-platform CVD package requires specific configurations based on your operating system:

Windows Environment Setup

When deploying on Windows systems:

  • Install the NuGet package through Visual Studio or the .NET CLI
  • No additional dependencies or configurations are required
  • Works out of the box with standard Windows installations

Ubuntu Linux Configuration

For Ubuntu Linux systems, install the following dependencies:

sudo apt-get install libgdiplus libopenblas-dev libx11-6

These packages provide essential functionalities:

  • libgdiplus: Provides System.Drawing compatibility
  • libopenblas-dev: Optimizes matrix operations for computer vision algorithms
  • libx11-6: Handles X Window System protocol client library

macOS Setup Instructions

For macOS environments, use Homebrew to install the required dependencies:

brew install --cask xquartz
brew install mono-libgdiplus

These components enable:

  • XQuartz: Provides X11 functionality on macOS
  • mono-libgdiplus: Ensures compatibility with System.Drawing

Additional Resources

For implementation examples and technical guidance:

  • Visit our GitHub repository for extensive code samples
  • Explore practical implementations across various use cases
  • Access community-contributed examples and solutions

Visit our GitHub page to get more code samples.