using System;

using System.IO;

using System.Drawing;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

    // Image to base64

    public string ImageToBase64(dynamic image, dynamic format)

    {

      using (MemoryStream ms = new MemoryStream())

      {

        // Convert Image to byte[]

        image.Save(ms, format);

        byte[] imageBytes = ms.ToArray();

​

        // Convert byte[] to Base64 String

        string base64String = Convert.ToBase64String(imageBytes);

        return base64String;

      }

    }

    /// base64 To Image

     public Image Base64ToImage(string base64String)

     {

         // Convert Base64 String to byte[]

         byte[] imageBytes = Convert.FromBase64String(base64String);

         using (var ms = new MemoryStream(imageBytes, 0, imageBytes.Length))

         {

​

             // Convert byte[] to Image

             ms.Write(imageBytes, 0, imageBytes.Length);

             Image image = Image.FromStream(ms, true);

             return image;

         }

     }

​

}