Im just new in using openCV and I am making a face recognition app using OpenCv library with windows form application

Severity Code Description Project File Line Suppression State
Error CS1503 Argument 1: cannot convert from ‘System.Drawing.Bitmap’ to ‘byte[,,*]’ ClientSideFaceRecognition C:\Users\user\Desktop\VS Studio projects\ClientSideFaceRecognition\Form1.cs 171 Active
  private Image<Bgr, byte> ByteArrayToImage(byte[] byteArray)
  {
      using (MemoryStream ms = new MemoryStream(byteArray))
      {
          Bitmap bitmap = (Bitmap)Image.FromStream(ms);
          Image<Bgr, byte> image = new Image<Bgr, byte>(bitmap);
          return image;
      }
  }

that error is purely C#, with no immediate relation to OpenCV or any of its third party wrappers for C#

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I might be the only C# Open CV developer around here but the error seems to be that the constructors for the type Image<Bgr, byte> do not have an argument for a Bitmap. Try a string or youcan make the method return a Mat object

using Emgu.CV;
using Emgu.CV.CvEnum;

private Mat ArrayToMat(byte[] byteArray)
{
    Mat mat = new Mat(1, byteArray.Length, DepthType.Cv8U, 1);
    mat.SetTo<byte>(byteArray);
    return mat;
}

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Thanks I will try this out.

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