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<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>canvas element's shadow effect use Gaussian blur to fulfill.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>In Gaussian blur, when do convolution operation, Gaussian
template's size(or Gaussian kernel width and height) affect the blur effect<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>,is there default value about Gaussian template’s
size(such as the size is (6ó+1)*(6ó+1),ó is the standard deviation).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face="Times New Roman"><span
lang=EN-US style='font-size:10.0pt;color:navy'>Regards</span></font><font
size=2 color=black><span lang=EN-US style='font-size:10.0pt;color:black'><br>
</span></font><font size=2 color=navy><span lang=EN-US style='font-size:10.0pt;
color:navy'>C.Y.P.</span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><font size=2 color=blue face="Times New Roman"><span
lang=EN-US style='font-size:10.0pt;color:blue'> <o:p></o:p></span></font></p>
<p style='margin-left:42.0pt'><font size=2 color=navy face=宋体><span lang=EN-US
style='font-size:10.0pt;color:navy'>Cao Yipeng<br>
Development Dept.I<br>
Nanjing Fujitsu Nanda Software Tech. Co., Ltd.(FNST)<br>
8/F., Civil Defense Building, <st1:Street w:st="on"><st1:address w:st="on">No.189
Guangzhou Road</st1:address></st1:Street> ,<br>
<st1:City w:st="on">Nanjing</st1:City> , 210029, <st1:country-region w:st="on"><st1:place
w:st="on">China</st1:place></st1:country-region> <br>
TEL: +86+25-86630566-817<br>
COINS: 79955-817<br>
FAX: +86+25-83317685<br>
MAIL: <a href="mailto:caoyp@cn.fujitsu.com">caoyp@cn.fujitsu.com</a></span></font><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt'> </span><span lang=EN-US><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US><o:p> </o:p></span></font></p>
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