EmguCV implementation in Xamarin.Forms

Question

I need to use the face detection feature provided by EmguCV on my Xamarin.Forms application. Does anyone know how to implement it?

Answer 1

Welcome to SO ! Here is a Hello World to XamarinForms demo.

using System;
using Emgu.CV;
using Emgu.CV.CvEnum;
using Emgu.CV.Structure;

namespace HelloWorld
{
    class Program
    {
        static void Main(string[] args)
        {
            String win1 = "Test Window"; //The name of the window
            CvInvoke.NamedWindow(win1); //Create the window using the specific name

            Mat img = new Mat(200, 400, DepthType.Cv8U, 3); //Create a 3 channel image of 400x200
            img.SetTo(new Bgr(255, 0, 0).MCvScalar); // set it to Blue color

            //Draw "Hello, world." on the image using the specific font
            CvInvoke.PutText(
               img,
               "Hello, world",
               new System.Drawing.Point(10, 80),
               FontFace.HersheyComplex,
               1.0,
               new Bgr(0, 255, 0).MCvScalar);


            CvInvoke.Imshow(win1, img); //Show the image
            CvInvoke.WaitKey(0);  //Wait for the key pressing event
            CvInvoke.DestroyWindow(win1); //Destroy the window if key is pressed
        }
    }
}

You can refer to GitHub project and Official document to modify code in your project .

==============================update==================================

If want to use EmguCV in Xamrin forms, you could install Emgu.CV nuget package in project. And refer to this article to start.