我將位圖圖片轉換爲字節數組和字符串.how可以再次將此字符串轉換爲該位圖圖片嗎？

Question

public byte[] PictureByteArray 
     { 
      get 
      { 
       //get a TypeConverter object for converting Bitmap to bytes 
       TypeConverter converter = TypeDescriptor.GetConverter(typeof(Bitmap)); 
       byte[] byteArr = (byte[])converter.ConvertTo(source, typeof(byte[])); 
       return byteArr; 
      } 
      set 
      { 
       source = new Bitmap(new MemoryStream(value)); 
      } 
     } 


    System.Text.UTF8Encoding enc = new System.Text.UTF8Encoding(); 
      s = enc.GetString(bytes); 

Answer 1

我通常使用這兩種方法用於將圖像轉印到Web服務時的圖像再次轉換成一個字節數組，和背面，例如，並再次返回檢索它：

public static byte[] ImageToByteArray(System.Drawing.Image imageIn) { 
    MemoryStream ms = new MemoryStream(); 
    Bitmap image = new Bitmap(imageIn); 
    image.Save(ms, System.Drawing.Imaging.ImageFormat.Png); 
    return ms.ToArray(); 
} 

public static Image ByteArrayToImage(byte[] byteArray) { 
    MemoryStream ms = new MemoryStream(byteArray); 
    Image returnImage = Image.FromStream(ms); 
    return returnImage; 
}