?function?e?=?canny（ImsigmafsizelowThreshhighThresh）
%
%?This?function?is?used?to?get?the?edge?of?the?gray?image?Im?
%?with?canny?detection.And?the?parameters?are?as?follows:
%?
%???Im?????????-?the?input?gray?image.
%???sigam??????-?the?gaussian?filter‘s?standard?deviation.???????
%???fsize??????-?the?gaussian?filter‘s?sizei.e[fsizefsize].
%???lowThresh??-?input?lower?thresh?value.
%???highThresh?-?input?high?thresh?value.
%???e??????????-?output?edge?image?which?is?a?binary?image.

??[widthheight]?=?size（Im）;
??e?=?zeros（widthheight）;
??fgau?=?fspecial（‘Gaussian‘[fsizefsize]sigma）;
??ImSmooth?=?imfilter（Imfgau‘replicate‘）;
??fx?=?[00;-11];
??fy?=?[0-1;01];
??
??ax?=?imfilter（ImSmoothfx‘replicate‘）;
??ay?=?imfilter（ImSmoothfy‘replicate‘）;
??
??m

?屬性????????????大小?????日期????時間???名稱
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?????文件???????4226??2011-03-19?20:33??canny.m

?????文件????????456??2011-03-20?20:48??cannytest.m

?????文件????????541??2011-03-26?21:05??readme.txt

-----------?---------??----------?-----??----

?????????????????5223????????????????????3