用中值滤波 的方法，对图像进行前处理 ，主要是将图像进行平滑的处理。对于后续的处理有帮助。-with median filtering method, the image pre-processing, mainly to image smoothing treatment. Regarding the follow-up treatment would be helpful.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001275s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.088732s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001161s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001927s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001160s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003658s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000990s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003216s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014802s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001240s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 261903 [ RunTime:0.001349s ]
