silverlight中如何将BitmapImage转化为Stream或byte数组?

声明:本文转载自:http://www.cnblogs.com/yjmyzz/archive/2010/01/15/1648317.html

 

上一篇"base64编码在silverlight中的使用"里已经提到WriteableBitmap对象可以借助FluxJpeg转化为base64字符串,而WriteableBitmap又能从BitmapSource直接构造,so ... 问题解决了

 

先将BitmapImage转化为WriteableBitmap,然后得到base64字符串,然后可以得到base64的byte[]数组,再然后您可以把byte[]变成Stream

 

关键代码:

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
 


将byte[]还原为图片:

byte[] b = ...//这里的b为上面生成的base64编码的byte数组
MemoryStream ms = new MemoryStream(b);
BitmapImage bitImage = new BitmapImage();
bitImage.SetSource(ms);
img2.Source = bitImage; 
 

 

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