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;