原来的：
2008-12-10 10:35 427,294 43pqh4n7.jpg
2008-12-10 10:35 427,305 5cxfywfz.jpg
2008-12-10 10:35 423,235 78ucpola.jpg
2008-12-10 10:35 427,939 fdrtmidj.jpg
2008-12-10 10:38 126,019 iwxyza3q.jpg
2008-12-10 10:35 431,278 jbxrlb97.jpg
2008-12-10 10:35 462,638 thsw5vwf.jpg
2008-12-10 10:35 414,698 uenwwy47.jpg
2008-12-10 10:35 427,846 vysybebt.jpg

经过图形转换后：
2008-12-11 23:25 90,210 43pqh4n7.jpg
2008-12-11 23:25 87,043 5cxfywfz.jpg
2008-12-11 23:25 97,799 78ucpola.jpg
2008-12-11 23:25 101,514 fdrtmidj.jpg
2008-12-11 23:25 87,854 iwxyza3q.jpg
2008-12-11 23:25 104,836 jbxrlb97.jpg
2008-12-11 23:25 135,486 thsw5vwf.jpg
2008-12-11 23:25 67,678 uenwwy47.jpg
2008-12-11 23:25 94,497 vysybebt.jpg

同样1280x960，质量也差不多，字节数差这么多。。。。。。。