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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"><html><head> <title>Description of gfcreateinformationdiagram2</title> <meta name="keywords" content="gfcreateinformationdiagram2"> <meta name="description" content="GFCREATEINFORMATIONDIAGRAM2 Information diagram of 2-D signal"> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <meta name="generator" content="m2html © 2003 Guillaume Flandin"> <meta name="robots" content="index, follow"> <link type="text/css" rel="stylesheet" href="../m2html.css"></head><body><a name="_top"></a><div><a href="../index.html">Home</a> > <a href="index.html">gabortb-v0.4.1</a> > gfcreateinformationdiagram2.m</div><!--<table width="100%"><tr><td align="left"><a href="../index.html"><img alt="<" border="0" src="../left.png"> Master index</a></td><td align="right"><a href="index.html">Index for gabortb-v0.4.1 <img alt=">" border="0" src="../right.png"></a></td></tr></table>--><h1>gfcreateinformationdiagram2</h1><h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="box"><strong>GFCREATEINFORMATIONDIAGRAM2 Information diagram of 2-D signal</strong></div><h2><a name="_synopsis"></a>SYNOPSIS <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="box"><strong>function [resps,freqs,orients] = gfcreateinformationdiagram2(img_, f0_,theta_, gamma_,eta_, varargin); </strong></div><h2><a name="_description"></a>DESCRIPTION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="fragment"><pre class="comment">GFCREATEINFORMATIONDIAGRAM2 Information diagram of 2-D signal [RESPS FREQS ORIENTS] = GFCREATEINFORMATIONDIAGRAM2(IMG, F0, THETA, GAMMA, ETA, x0, y0) Creates an information diagram for 2-D signal IMG at locations X0, Y0, using frequencies F0 (diagram Y-axis), orientations THETA (x-axis), and sharpness values GAMMA, ETA. Function return the MxN diagram matrix RESPS, Mx1 vector of frequencies, 1xN vector of orientations. Examples See also <a href="gfequalorientations.html" class="code" title="function [o]=gfequalorientations(n)">GFEQUALORIENTATIONS</a>. References: [1] Kamarainen, J.-K., Kyrki, V., Kalviainen, H., Gabor Features for Invariant Object Recognition, Research report 79, Department of Information Technology, Lappeenranta University of Technology [2] Kamarainen, J.-K., Kyrki, V., Kalviainen, H., Fundamental Frequency Gabor Filters for Object Recognition, Proceedings of ICPR2002 16th Internationa Conference on Pattern Recognition, Vol. 1 pp. 628-631, Quebec City, Canada, 2002. Author(s): Joni Kamarainen <Joni.Kamarainen@lut.fi> Ville Kyrki <Ville.Kyrki@lut.fi> Copyright: The Gabor Features in Signal and Image Processing Toolbox is Copyright (C) 2000 by Joni Kamarainen and Ville Kyrki. $Name: $ $Revision: 1.5 $ $Date: 2003-02-23 16:27:44 $</pre></div><!-- crossreference --><h2><a name="_cross"></a>CROSS-REFERENCE INFORMATION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>This function calls:<ul style="list-style-image:url(../matlabicon.gif)"><li><a href="gfcreatefilterf2.html" class="code" title="function [g]=gfcreatefilterf2(f0, theta, gamma, eta, N,varargin)">gfcreatefilterf2</a> GFCREATEFILTERF2 Create normalized 2-D Gabor filter in the frequency domain.</li><li><a href="gfrespf2.html" class="code" title="function [r]=gfrespf2(gf_, s_, varargin);">gfrespf2</a> GFRESPF2 2-D filter response using frequency domain filters.</li></ul>This function is called by:<ul style="list-style-image:url(../matlabicon.gif)"><li><a href="gffindfundamentalfreqs.html" class="code" title="function [fundFreqs,orients,vals,indeces] =gffindfundamentalfreqs(img_, x0_, y0_, f0_, theta_, gamma_, eta_);">gffindfundamentalfreqs</a> GFFINDFUNDAMENTALFREQS Find fundamental frequencies of an image.</li></ul><!-- crossreference --><h2><a name="_source"></a>SOURCE CODE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="fragment"><pre>0001 <span class="comment">%GFCREATEINFORMATIONDIAGRAM2 Information diagram of 2-D signal</span>0002 <span class="comment">%</span>0003 <span class="comment">% [RESPS FREQS ORIENTS] =</span>0004 <span class="comment">% GFCREATEINFORMATIONDIAGRAM2(IMG, F0, THETA, GAMMA, ETA, x0, y0)</span>0005 <span class="comment">% Creates an information diagram for 2-D signal IMG at locations</span>0006 <span class="comment">% X0, Y0, using frequencies F0 (diagram Y-axis), orientations</span>0007 <span class="comment">% THETA (x-axis), and sharpness values GAMMA, ETA. Function</span>0008 <span class="comment">% return the MxN diagram matrix RESPS, Mx1 vector of frequencies,</span>0009 <span class="comment">% 1xN vector of orientations.</span>0010 <span class="comment">%</span>0011 <span class="comment">% Examples</span>0012 <span class="comment">%</span>0013 <span class="comment">% See also GFEQUALORIENTATIONS.</span>0014 <span class="comment">%</span>0015 <span class="comment">% References:</span>0016 <span class="comment">% [1] Kamarainen, J.-K., Kyrki, V., Kalviainen, H., Gabor</span>0017 <span class="comment">% Features for Invariant Object Recognition, Research</span>0018 <span class="comment">% report 79, Department of Information Technology,</span>0019 <span class="comment">% Lappeenranta University of Technology</span>0020 <span class="comment">% [2] Kamarainen, J.-K., Kyrki, V., Kalviainen, H.,</span>0021 <span class="comment">% Fundamental Frequency Gabor Filters for Object Recognition,</span>0022 <span class="comment">% Proceedings of ICPR2002 16th Internationa Conference</span>0023 <span class="comment">% on Pattern Recognition, Vol. 1 pp. 628-631, Quebec City,</span>0024 <span class="comment">% Canada, 2002.</span>0025 <span class="comment">%</span>0026 <span class="comment">% Author(s):</span>0027 <span class="comment">% Joni Kamarainen <Joni.Kamarainen@lut.fi></span>0028 <span class="comment">% Ville Kyrki <Ville.Kyrki@lut.fi></span>0029 <span class="comment">%</span>0030 <span class="comment">% Copyright:</span>0031 <span class="comment">%</span>0032 <span class="comment">% The Gabor Features in Signal and Image Processing Toolbox is</span>0033 <span class="comment">% Copyright (C) 2000 by Joni Kamarainen and Ville Kyrki.</span>0034 <span class="comment">%</span>0035 <span class="comment">%</span>0036 <span class="comment">% $Name: $ $Revision: 1.5 $ $Date: 2003-02-23 16:27:44 $</span>0037 <span class="comment">%</span>0038 <a name="_sub0" href="#_subfunctions" class="code">function [resps,freqs,orients] = gfcreateinformationdiagram2(img_, f0_, </a><span class="keyword">...</span>0039 theta_, gamma_, <span class="keyword">...</span>0040 eta_, varargin);0041 0042 freqs = diag(diag(f0_))'; <span class="comment">% Mx1</span>0043 orients = diag(diag(theta_)); <span class="comment">% 1xN</span>0044 0045 <span class="keyword">if</span> (nargin > 5) <span class="comment">% coordinates given</span>0046 x0 = varargin{1};0047 y0 = varargin{2};0048 resps = zeros(length(freqs), length(orients));0049 0050 <span class="keyword">for</span> n = 1:length(orients)0051 <span class="keyword">for</span> m = 1:length(freqs)0052 filt = <a href="gfcreatefilterf2.html" class="code" title="function [g]=gfcreatefilterf2(f0, theta, gamma, eta, N,varargin)">gfcreatefilterf2</a>(freqs(m), orients(n), gamma_, eta_, [size(img_,2) size(img_,1)]);0053 resps(m, n) = <a href="gfrespf2.html" class="code" title="function [r]=gfrespf2(gf_, s_, varargin);">gfrespf2</a>(filt, img_, x0, y0);0054 <span class="keyword">end</span>;0055 <span class="keyword">end</span>;0056 <span class="keyword">else</span>0057 resps = zeros(length(freqs), length(orients), size(img_,1), size(img_,2));0058 0059 <span class="keyword">for</span> n = 1:length(orients)0060 <span class="keyword">for</span> m = 1:length(freqs)0061 filt = <a href="gfcreatefilterf2.html" class="code" title="function [g]=gfcreatefilterf2(f0, theta, gamma, eta, N,varargin)">gfcreatefilterf2</a>(freqs(m), orients(n), gamma_, eta_, [size(img_,2) size(img_,1)]);0062 resps(m,n,:,:) = <a href="gfrespf2.html" class="code" title="function [r]=gfrespf2(gf_, s_, varargin);">gfrespf2</a>(filt, img_);0063 <span class="keyword">end</span>;0064 <span class="keyword">end</span>;0065 <span class="keyword">end</span>;0066 0067 0068 0069 0070 0071 0072 0073 0074</pre></div><hr><address>Generated on Fri 23-Nov-2007 14:52:42 by <strong><a href="http://www.artefact.tk/software/matlab/m2html/">m2html</a></strong> © 2003</address></body></html>⌨️ 快捷键说明
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