C# Convert Image to byte array (byte[]) or C# convert byte array (byte[]) to Image

Convert Image to byte[] method:

 
public byte[] imageToByteArray(Image imageIn)
{
    using (var ms = new System.IO.MemoryStream())
    {
        System.Drawing.Imaging.ImageFormat format;
        switch (imageIn.MimeType())
        {
            case "image/png":
                format = ImageFormat.Png;
                break;
            case "image/gif":
                format = ImageFormat.Gif;
                break;
            default:
                format = ImageFormat.Jpeg;
                break;
        }
        imageIn.Save(ms, format);
        return ms.ToArray();
    }
}

Convert byte[] to Image method:

 
public Image byteArrayToImage(byte[] byteArrayIn)
{
    using (var ms = new System.IO.MemoryStream(byteArrayIn))
    {
        Image returnImage = Image.FromStream(ms);
        return returnImage;
    }
}

Additional Reading at :

1. MSDN ImageFormat
2. MSDN Image.Save
3. MSDN MemoryStream