rtf格式提取图片

{\rtf1\ansi\ansicpg936\deff0\deflang1033\deflangfe2052
{\fonttbl{\f0\fnil\fcharset134 \'cb\'ce\'cc\'e5;}}
\viewkind4\uc1\pard\lang2052\f0\fs18
{\pict\wmetafile8\picw16957\pich11931\picwgoal9613\pichgoal6764 
010009000003fe9e06000000e89e06000000050000000b
0200000000050000000c029b2e3d42e8
9e0600430f2000cc000000c301810200
0000009b2e3d42000000002800000081020000c3010000
01001800000000008c3d0d00c40e0000c40e00
000000000000000000646f71646f71646f71646f
71646f71646f71646f71646f71646f71646f7164
6f71646f71646f71646f71646f71646f71646f
71646f71646f71646f71646f71646f71646f7164
6f71646f71646f71646f71646f71646f71646f
71646f71646f71646f71646f71646f71646f71
646f71646f71646f71646f71646f71646f71646f
。
f1e2eff1e2eff1e2eff1e2eff1e2eff1e2eff1e2eff1e2e
ff1e2eff1e2eff1e2eff1e2eff1646f
7100030000000000
}\par
} 我有这样的一个rtf文件，现在想把其中的图片提取出来，
我不知道图片的二进制到底是从什么地方开始的，望大虾问指点指点