public static int GetMeanThreshold(int[] HistGram)
{
int Sum = 0, Amount = 0;
for (int Y = 0; Y < 256; Y++)
{
Amount += HistGram[Y];
Sum += Y * HistGram[Y];
}
return Sum / Amount;
}
讲述了十三中二值化算法的原理及实现方法
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000929s ]
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:0.104033s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.023852s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.006216s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.013590s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.015595s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001114s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003722s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014153s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001114s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 40240 [ RunTime:0.011982s ]
