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 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;
}
{
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;
}