Image 轉換爲 byte[]數組 與 byte[]數組轉換爲 Image

  #region Image 轉換爲 byte[]數組
        /// <summary>
        ///
        /// </summary>
        /// <param name="imageIn"></param>
        /// <returns></returns>
        public static byte[] imageToByteArray(System.Drawing.Image imageIn)
        {
            if (imageIn == null)
                return null;

            using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
            {
                imageIn.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
                return ms.ToArray();
            }
        }
        #endregion

        #region byte[]數組轉換爲 Image
        /// <summary>
        ///
        /// </summary>
        /// <param name="byteArrayIn"></param>
        /// <returns></returns>
        public static System.Drawing.Image byteArrayToImage(byte[] byteArrayIn)
        {
            if (byteArrayIn == null)
                return null;

            using (System.IO.MemoryStream ms = new System.IO.MemoryStream(byteArrayIn))
            {
                System.Drawing.Image returnImage = System.Drawing.Image.FromStream(ms);
                return returnImage;
            }
        }
        #endregion