首先  报表*.fr3文件得tfrxpictureview控件.然后在tfrxreport beforeprint 写代码.
var
   picture :tfrxpictureview
begin
  picture := frxreport.findobject('picture control name');
  //picture.loadfromfile('C:\XXX.jpg');
  picture.loadfromstream(some stream);
end;