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WPF Image控件 Source: Byte[] ,BitmapImage 相互转换

文件转为byte[]

FileStream fs = new FileStream(filepath, FileMode.Open, FileAccess.Read);byte[] desBytes = new byte[fs.Length];fs.Read(desBytes, 0, desBytes.Length);fs.Close();  

 

byte[]转换为BitmapImage:

public static BitmapImage ByteArrayToBitmapImage(byte[] byteArray) {     BitmapImage bmp = null;      try     {         bmp = new BitmapImage();         bmp.BeginInit();         bmp.StreamSource = new MemoryStream(byteArray);         bmp.EndInit();     }     catch     {         bmp = null;     }      return bmp; }

BitmapImage转换为byte[]:

public static byte[] BitmapImageToByteArray(BitmapImage bmp) {     byte[] byteArray = null;      try     {         Stream sMarket = bmp.StreamSource;          if (sMarket != null && sMarket.Length > 0)         {             //很重要,因为Position经常位于Stream的末尾,导致下面读取到的长度为0。             sMarket.Position = 0;             using (BinaryReader br = new BinaryReader(sMarket))             {                 byteArray = br.ReadBytes((int)sMarket.Length);             }         }     }     catch     {         //other exception handling     }      return byteArray; }
WriteableBitmap wb = new WriteableBitmap(img.Source as BitmapSource);//将Image对象转换为WriteableBitmap byte[] b = Convert.FromBase64String(GetBase64Image(wb));//得到byte数组

 

WPF Image控件 Source: Byte[] ,BitmapImage 相互转换