InternalExtentions.cs

using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Windows.Media.Imaging;

namespace CodingSeb.Converters.Tests
{
    internal static class InternalExtentions
    {
        public static bool IsEqual(this BitmapImage image1, BitmapImage image2)
        {
            if (image1 == null || image2 == null)
            {
                return false;
            }
            return image1.ToBytes().SequenceEqual(image2.ToBytes());
        }

        public static byte[] ToBytes(this BitmapImage image)
        {
            byte[] data = new byte[] { };
            if (image != null)
            {
                try
                {
                    var encoder = new BmpBitmapEncoder();

                    encoder.Frames.Add(BitmapFrame.Create(image));
                    using (MemoryStream ms = new MemoryStream())
                    {
                        encoder.Save(ms);
                        data = ms.ToArray();
                    }
                    return data;
                }
                catch
                { }
            }
            return data;
        }

        public static BitmapImage ToBitmapImage(this Bitmap bitmap)
        {
            using (var memory = new MemoryStream())
            {
                bitmap.Save(memory, ImageFormat.Png);
                memory.Position = 0;

                var bitmapImage = new BitmapImage();
                bitmapImage.BeginInit();
                bitmapImage.StreamSource = memory;
                bitmapImage.CacheOption = BitmapCacheOption.OnLoad;
                bitmapImage.EndInit();

                return bitmapImage;
            }
        }
    }
}