这个程序实现基本罗伯特，Prewitt算子和Sobel算子为更好的边缘检测是标准的运营商来检测边缘。this program implement basic Robert, Prewitt and Sobel operator for better edge detection which are standard operator to detect edge.
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robert, sobel, prewitt op prewittsop.asv prewittsop.m robertop.asv robertop.m sobelop.asv sobelop.m
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001899s ]
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SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001025s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001006s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003016s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000859s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014739s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001079s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 30189 [ RunTime:0.015061s ]
