loadfile.do.htm

三个参数不同的gabor滤波器设计

           <td class="npad" valign="top"><img src="loadFile.do_files/dots_rnav.gif" alt="" height="5" vspace="0" width="180"></td>
         </tr>


  </tbody></table>

 </td>
 </tr>
</tbody></table>

</div>
<script type="text/javascript" language="javascript">
<!--
function PopUp(page,title,which)
{
  if (which==true) {
   OpenWin = this.open('/cgi-bin/page_mail_mlc.cgi?language=en&host=www.mathworks.com&document=www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=5237%26objectType=file', title, "toolbar=no,menubar=no,location=no,scrollbars=yes,resize=yes,height=385,width=440");
  } else {
   OpenWin = this.open('/cgi-bin/page_mail_mlc.cgi?language=en&host=www.mathworks.com&document=www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=5237%26objectType=file', title, "toolbar=no,menubar=no,location=no,scrollbars=yes,resize=no,height=150,width=300");
  }
}
//-->
</script>

    




      <table id="breadcrmb" border="0" cellpadding="0" cellspacing="0" width="572">
         <tbody><tr>
            <td class="brdcrmbcell" height="20">
            <a href="http://www.mathworks.com/matlabcentral/">MATLAB Central</a> &gt;&nbsp;
            <a href="http://www.mathworks.com/matlabcentral/fileexchange/loadCategory.do">File Exchange</a> &gt; <a href="http://www.mathworks.com/matlabcentral/fileexchange/loadCategory.do?objectId=26&amp;objectType=Category">Image Processing</a> &gt; <a href="http://www.mathworks.com/matlabcentral/fileexchange/loadCategory.do?objectId=131&amp;objectType=Category">Filtering</a> &gt; 2D Gabor Filter(Ver1,2,3) 
            </td>
         </tr>
      </tbody></table>



    <div class="mainbody">
    <table style="background-color: rgb(255, 255, 255);" border="0" cellpadding="0" cellspacing="0" width="536">
     <tbody><tr>
      <td>
        <table border="0" cellpadding="0" cellspacing="0" width="514">
          <tbody><tr>
             <td colspan="2"><table bgcolor="#ffffff" border="0" cellpadding="0" cellspacing="0" width="514">
<tbody><tr><td class="headercell" height="20" width="70%">&nbsp;2D Gabor Filter(Ver1,2,3)&nbsp;
</td><td class="headercell" align="right" width="30%">&nbsp;</td></tr>
<tr><td colspan="2">
<img src="loadFile.do_files/blue_band_536x5.gif" height="5" width="536"></td>
</tr></tbody></table>
</td>
          </tr>
        </tbody></table>
      </td>
      </tr>
    </tbody></table>
    <form name="dnlForm" method="post" action="/matlabcentral/fileexchange/download.do" style="margin-top: 0pt;"><input name="org.apache.struts.taglib.html.TOKEN" value="2f5987fb8ae5566ab63bc8dc7217b799" type="hidden">
    <table class="filetable" border="0" cellpadding="0" cellspacing="0" width="536">
      
          
          <tbody><tr>
            <td valign="top" width="10">&nbsp;</td>
            <td colspan="3"><img src="loadFile.do_files/question.gif" alt="" border="0" height="11" width="11">
            <a href="http://www.mathworks.com/matlabcentral/fileexchange/file_collaboration.jsp" onclick="window.open(this.href,'small','toolbar=no,resizable=yes,status=yes,menu=no,scrollbars=yes,width=536,height=250');return false;" class="small">
            I am interested in collaboration.</a></td>
          </tr>
          
          <tr>
            <td valign="top" width="10">&nbsp;</td>
            <td><div style="padding-right: 10px;"><b>Download Now:</b></div></td>
            <td><input name="Submit" value=" .zip " class="small" type="submit"></td>

          </tr>
          
          <tr>
          <td valign="top" width="10">&nbsp;</td>
            <td valign="top"><b>Rating:</b>
              
            </td>
            <td>

              
              
              

              
		
                 <img src="loadFile.do_files/fullstar.gif" alt="" height="12" hspace="1" width="12"><img src="loadFile.do_files/fullstar.gif" alt="" height="12" hspace="1" width="12"><img src="loadFile.do_files/fullstar.gif" alt="" height="12" hspace="1" width="12"><img src="loadFile.do_files/fullstar.gif" alt="" height="12" hspace="1" width="12"><img src="loadFile.do_files/fullstar_grey.gif" alt="" height="12" hspace="1" width="12">
                

                   <div style="margin-left: 20px; display: inline;">
                   	<a href="http://www.mathworks.com/matlabcentral/fileexchange/loadRatings.do?objectId=5237&amp;objectType=file&amp;all" class="small">
                             
                             	61 reviews</a>
                             
                  &nbsp;&nbsp;<b><a href="http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=5237&amp;objectType=file#review_submission" class="small">Review this file</a></b>
            	   </div>
               

            </td>
          </tr>

          
            <tr>
              <td valign="top" width="10">&nbsp;</td>
              <td valign="top"><b>Code Metrics:</b></td>
              <td>

                <table cellpadding="0" cellspacing="0">
                  <tbody><tr>
                    <td width="75">
                      <table border="0" cellpadding="0" cellspacing="1">
                        <tbody><tr>
                          <td><img src="loadFile.do_files/60th.png" title="Complexity (64th percentile, raw score: 4)" border="0" height="10" width="11"></td>
                          <td><img src="loadFile.do_files/30th.png" title="M-Lint (30th percentile, raw score: 3.0)" border="0" height="10" width="11"></td>
                          <td><img src="loadFile.do_files/50th.png" title="Help (56th percentile, raw score: 1.0)" border="0" height="10" width="11"></td>
                          <td><img src="loadFile.do_files/90th.png" title="Clash (100th percentile, raw score: 0)" border="0" height="10" width="11"></td>
                          <td><img src="loadFile.do_files/90th.png" title="Cloned (100th percentile, raw score: 0)" border="0" height="10" width="11"></td>
                        </tr>
                      </tbody></table>
                    </td>
                    <td>
                      <div style="margin-left: 10px; display: inline;">
                        <a href="http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=5237&amp;objectType=scoreDetails" class="small">Full report</a>&nbsp;&nbsp;
                      </div>
                      <br>
                    </td>
                  </tr>
                  <tr>
                    <td colspan="2">
                      <img src="loadFile.do_files/question.gif" alt="" border="0" height="11" width="9">&nbsp;<a href="http://www.mathworks.com/matlabcentral/fileexchange/codeMetricsPopup.jsp" onclick="window.open(this.href,'small','toolbar=no,resizable=yes,status=yes,menu=no,scrollbars=yes,width=571,height=450');return false;" class="small">What is this?</a>
                    </td>
                  </tr>
                </tbody></table>

              </td>
            </tr>
          


          
          <tr>
            <td valign="top" width="10">&nbsp;</td>
            <td valign="top" width="89"><b>Author:</b></td>
            <td colspan="2"><a href="http://www.mathworks.com/matlabcentral/fileexchange/loadAuthor.do?objectType=author&amp;objectId=1094098">Ahmad&nbsp;Poursaberi</a></td>
          </tr>
          <tr>
            <td height="15" valign="top" width="10">&nbsp;</td>
            <td height="15" valign="top" width="89"><b>Summary:</b></td>
            <td colspan="2" height="15">To design 2D Gabor filter and apply it to image.</td>
          </tr>
          <tr>
            <td height="15" valign="top" width="10">&nbsp;</td>
            <td height="15" valign="top" width="125"><b>MATLAB Release:</b></td>
            <td colspan="2" height="15" valign="bottom">R13</td>
          </tr>

          
          <tr>
            <td height="15" valign="top" width="10">&nbsp;</td>
            <td height="15" valign="top" width="125"><b>Required Products:</b></td>
            
            <td colspan="2" height="15">Filter Design Toolbox,Image Processing Toolbox</td>
          </tr>
          

          

          

         

          <tr>
            <td valign="top" width="10">&nbsp;</td>
            <td valign="top" width="135"><b>Description:</b></td>
            <td class="lnwrp" width="456">
Recent studies on Mathematical modeling of visual cortical cells
[Kulikowski/Marcelja/Bishop:1982] suggest a tuned band pass filter bank
structure. These filters are found to have Gaussian transfer functions
in the frequency domain. Thus, taking the Inverse Fourier Transform of
this transfer function we get a filter characteristics closely
resembling to the Gabor filters. The Gabor filter is basically a
Gaussian (with variances sx and sy along x and y-axes respectively)
modulated by a complex sinusoid (with centre frequencies U and V along
x and y-axes respectively).<br>
<br>
Gabor filters are used mostly in shape detectin and feature extractin in image processing.<br>
<br>
function [G,gabout] = gaborfilter1(I,Sx,Sy,f,theta);<br>
from 'gaborfilter1' with different f(Frequency) and theta(Angle).<br>
for example<br>
<br>
f:0,2,4,8,16,32<br>
theta = 0,pi/3,pi/6,pi/2,3pi/4<br>
<br>
then for any input image like(eg. stereo.jpg)<br>
<br>
you have 6x5 = 30 filtered images.<br>
<br>
You can choose your desired angles or frequencies.<br>
<br>
You can put nominaly Sx &amp; Sy = 2,4 or some one else.<br>
<br>
For instance I tested above example on ('cameraman.tif')(in MATLAB pictures)<br>
<br>
I = imread('cameraman.tif');<br>
[G,gabout] = gaborfilter1(I,2,4,16,pi/3);<br>
figure,imshow(uint8(gabout));  <br>
            </td>
         </tr>

        

           <tr>
               <td valign="top" width="10">&nbsp;</td>
               <td colspan="3" valign="top">&nbsp; </td>
           </tr>
     </tbody></table>

     <input name="fileId" value="5237" type="hidden">
     <input name="fileName" value="gaborfilter" type="hidden">
     <input name="fileExt" value=".zip" type="hidden">
     <input name="contributorId" value="1094098" type="hidden">
     </form>
     <br>
     <table style="background-color: rgb(255, 255, 255);" border="0" cellpadding="0" cellspacing="0" width="536">
       <tbody><tr>
         <td>
          <table border="0" cellpadding="0" cellspacing="0" width="514">
            <tbody><tr>
              <td width="286"> <b class="feh4blk"> File Details</b></td>
              <td width="228">&nbsp;</td>
            </tr>
            <tr>
              <td colspan="2"><img src="loadFile.do_files/blue_band_536x5.gif" alt="" height="5" width="536"></td>
            </tr>
          </tbody></table>
          </td>
          </tr>
      </tbody></table>
      <table border="0" cellpadding="0" cellspacing="0" width="536">
          <tbody><tr bgcolor="#f4f4f4">
            <td colspan="5" valign="top">&nbsp;</td>

          </tr>
          <tr bgcolor="#f4f4f4">
            <td valign="top" width="1%">&nbsp;</td>
            <td valign="top" width="25%"><b>File Id:</b></td>
            <td width="20%">5237</td>
            <td valign="top" width="25%"><b>Average rating:</b></td>
            <td width="29%">4.1</td>
          </tr>
          <tr bgcolor="#f4f4f4">
            <td valign="top">&nbsp;</td>
            <td valign="top"><b>Size:</b></td>
            <td>2 KB</td>
            <td valign="top"><b># of reviews:</b></td>
            <td>61</td>
          </tr>

          <tr bgcolor="#f4f4f4">
            <td valign="top">&nbsp;</td>
            <td valign="top"><b>Submitted:</b></td>
            <td>2004-06-13</td>
            <td valign="top"><b>Downloads:</b></td>
            <td>16966</td>
          </tr>

          <tr bgcolor="#f4f4f4">
            <td valign="top">&nbsp;</td>
            <td valign="top"><b>Subscribers:</b></td>
            <td>75</td>
            <td colspan="2">&nbsp;</td>
          </tr>

          <tr bgcolor="#f4f4f4">
            <td>&nbsp;</td>
            <td valign="top"><b>Keywords:</b></td>
            <td colspan="3" valign="top">Gabor filter,Image Processing</td>
          </tr>

          
          <tr bgcolor="#f4f4f4">
             <td valign="top" width="10">&nbsp;</td>
             <td colspan="4" valign="top">&nbsp;</td>
         </tr>
         
             <tr bgcolor="#f4f4f4">
                <td>&nbsp;</td>
                <td valign="top"><b>Zip file contents:</b></td>
                <td colspan="3" valign="top">gaborfilter.m,  gaborfilter2.m,  gaborfilter1.m</td>
             </tr>
         
     </tbody></table>
    <br>
    <!--Acknowledgements -->
    
     <!--Acknowledgements -->

      









<br>
<table style="background-color: rgb(255, 255, 255);" border="0" cellpadding="0" cellspacing="0" width="536">
    <tbody><tr>
      <td>
      <table border="0" cellpadding="0" cellspacing="0" width="514">
          <tbody><tr>
            <td width="286"> <b class="feh4blk"> User Reviews</b></td>
            <td width="228"> <div class="small" align="right">Number
                of Reviews: 61</div></td>
          </tr>
          <tr>
            <td colspan="2"><img src="loadFile.do_files/blue_band_536x5.gif" alt="" height="5" width="536"></td>
          </tr>
        </tbody></table></td>
    </tr>
 </tbody></table>

 
   <table border="0" cellpadding="3" cellspacing="0" width="536">

  
      <tbody><tr>