这是一种图像视觉显著性提取方法，对应文献S. Goferman, L. Zelnik-Manor, and A. Tal, “Context-aware saliency detection,” in IEEE CVPR, 2010, pp. 2376–2383.该文献中的模型同时考虑了图像的局部特征和全局特征，克服了显著区域范围是固定模型以及区域只考虑到前景图像，忽视含有信息量的背景信息的做法，能提取出显著区域轮廓，利于后续处理，但是需要计算图像中每个像素点相当于局部区域的显著性，计算量较大。
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001039s ]
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:0.079233s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000979s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001118s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001001s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003093s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000892s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003656s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.024422s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001121s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 29869 [ RunTime:0.018395s ]
