将一幅给定的图像加噪后进行平滑滤波和中值滤波处理，比较两种处理的效果并与原图像比较之。并添加了锐化滤波处理。-to be an increase in the noise image after smoothing filter and the filter, compare the results with the original image comparison. And add a sharpening filter.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002263s ]
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:0.106028s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002703s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002352s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002125s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002338s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 140143 [ RunTime:0.001233s ]
