WPF:如何将SQL Server类型的图像保存为图像？

// 连接到SQL Server数据库
using (SqlConnection connection = new SqlConnection(connectionString))
{
    connection.Open();

    // 执行SQL查询语句获取图像数据
    string query = "SELECT ImageData FROM Images WHERE ImageId = @ImageId";
    SqlCommand command = new SqlCommand(query, connection);
    command.Parameters.AddWithValue("@ImageId", imageId);

    // 从数据库中读取图像数据
    byte[] imageData = (byte[])command.ExecuteScalar();

    // 创建新的BitmapSource对象
    BitmapSource bitmapSource = BitmapSource.Create(
        width, height, dpiX, dpiY, PixelFormats.Bgr32, null, imageData, stride);

    // 将图像保存为JPEG格式
    JpegBitmapEncoder encoder = new JpegBitmapEncoder();
    encoder.Frames.Add(BitmapFrame.Create(bitmapSource));
    using (FileStream stream = new FileStream("image.jpg", FileMode.Create))
    {
        encoder.Save(stream);
    }
}