Convert Image File to Matrix with EmguCV C# and Save Matrix as ImageFile

EmguImageConversionUtilities.cs

using OpenCV = Emgu.CV;

public class Utilities{
  public static MathNet.Numerics.LinearAlgebra.Matrix<double>[] LoadImageMatrix(string path)
  {
    OpenCV.Mat mat = OpenCV.CvInvoke.Imread(path, OpenCV.CvEnum.ImreadModes.AnyColor);
    OpenCV.Image<OpenCV.Structure.Bgr, double> image = mat.ToImage<OpenCV.Structure.Bgr, double>();

    OpenCV.Image<OpenCV.Structure.Gray, double> blue = image[0];
    OpenCV.Image<OpenCV.Structure.Gray, double> green = image[1];
    OpenCV.Image<OpenCV.Structure.Gray, double> red = image[2];


    OpenCV.Matrix<double> matrixRed = new OpenCV.Matrix<double>(red.Height, red.Width, red.NumberOfChannels);
    OpenCV.Matrix<double> matrixBlue = new OpenCV.Matrix<double>(blue.Height, blue.Width, blue.NumberOfChannels);
    OpenCV.Matrix<double> matrixGreen = new OpenCV.Matrix<double>(green.Height, green.Width, green.NumberOfChannels);



    red.CopyTo(matrixRed);
    blue.CopyTo(matrixBlue);
    green.CopyTo(matrixGreen);
    
    return new OpenCV.Matrix<double>[3] {matrixRed, matrixGreen, matrixBlue };

  }
  
   public static bool WriteImage(String path, OpenCV.Matrix<double> [] matrices)
            {
       
                
                OpenCV.Matrix<double> []  BRGMatrices = Converters.ToBRGMatrix(matrices);
                double[,,] ThreeDMatrix = new double[BRGMatrices[0].Rows, BRGMatrices[0].Cols, 3];
                Parallel.For(0, BRGMatrices.Length, index =>
                {
                    for (int i = 0; i < BRGMatrices[0].Rows; i++)
                        for (int j = 0; j < BRGMatrices[0].Cols; j++)
                            ThreeDMatrix[i, j, index] = BRGMatrices[index][i, j];

                });
                OpenCV.Image<OpenCV.Structure.Bgr, double> image = new OpenCV.Image<OpenCV.Structure.Bgr, double>(ThreeDMatrix);
                return OpenCV.CvInvoke.Imwrite(path, image, new KeyValuePair<OpenCV.CvEnum.ImwriteFlags, int>(OpenCV.CvEnum.ImwriteFlags.JpegQuality, 100)) ;
                
            }
}