基于阀值的阈值分割：由灰度直方图可以看出谷值即是阀值，然后分割出来目标图像。-Based on the threshold of the threshold segmentation: histogram can be seen from the valley that is, threshold, and then divided by the target image.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001146s ]
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:0.073923s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001009s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001078s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001041s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.002980s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000883s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004138s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014720s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001131s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 197461 [ RunTime:0.024399s ]
