基于对比度分割的图像处理，阈值的选取通常以产生最大对比度为准。-Segmentation based on the contrast of the image processing, the threshold is usually selected to produce, whichever is the greatest contrast.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002110s ]
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:0.089069s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002622s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002426s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002359s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003881s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002345s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003680s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016486s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.003239s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 255877 [ RunTime:0.001279s ]
