📄 makeblueyellowpyramid.html
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"><html><head> <title>Description of makeBlueYellowPyramid</title> <meta name="keywords" content="makeBlueYellowPyramid"> <meta name="description" content="makeBlueYellowPyramid - creates a blue-yellow opponency pyramid."> <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="#">mfiles</a> > makeBlueYellowPyramid.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 .\mfiles <img alt=">" border="0" src="../right.png"></a></td></tr></table>--><h1>makeBlueYellowPyramid</h1><h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="box"><strong>makeBlueYellowPyramid - creates a blue-yellow opponency pyramid.</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 [byPyr,bPyr,yPyr] = makeBlueYellowPyramid(image,type) </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"> makeBlueYellowPyramid - creates a blue-yellow opponency pyramid. [byPyr,bPyr,yPyr] = makeBlueYellowPyramid(Image,type) Creates a gaussian pyramid from a blue-yellow opponency map (byPyr) of image and, if requested, also the separate blue (bPyr) and yellow (yPyr) pyramids. Image - Image structure of the input image. type - 'dyadic' or 'sqrt2' For a dicussion of the particular definitions of color opponency used here, see appendix A.2 of Dirk's PhD thesis: Walther, D. (2006). Interactions of visual attention and object recognition: Computational modeling, algorithms, and psychophysics. Ph.D. thesis. California Institute of Technology. http://resolver.caltech.edu/CaltechETD:etd-03072006-135433. See also <a href="makeRedGreenPyramid.html" class="code" title="function [rgPyr,rPyr,gPyr] = makeRedGreenPyramid(image,type)">makeRedGreenPyramid</a>, <a href="getRGB.html" class="code" title="function [r,g,b,in] = getRGB(img,varargin)">getRGB</a>, <a href="makeGaussianPyramid.html" class="code" title="function pyr = makeGaussianPyramid(map,type,varargin)">makeGaussianPyramid</a>, <a href="makeFeaturePyramids.html" class="code" title="function pyrs = makeFeaturePyramids(img,featureType,salParams,varargin)">makeFeaturePyramids</a>, <a href="dataStructures.html" class="code" title="">dataStructures</a>.</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="clamp.html" class="code" title="function data = clamp(data,bottom,varargin)">clamp</a> clamp - clamps data at the top and/or bottom.</li><li><a href="declareGlobal.html" class="code" title="">declareGlobal</a> declareGlobal - declares global variables.</li><li><a href="getRGB.html" class="code" title="function [r,g,b,in] = getRGB(img,varargin)">getRGB</a> getRGB(img) - extracts the r, g, and b parts for a color image.</li><li><a href="loadImage.html" class="code" title="function imgData = loadImage(Image)">loadImage</a> loadImage - returns the imgData for the Image structure</li><li><a href="makeGaussianPyramid.html" class="code" title="function pyr = makeGaussianPyramid(map,type,varargin)">makeGaussianPyramid</a> makeGaussianPyramid - creates a Gaussian pyramid from map.</li><li><a href="safeDivide.html" class="code" title="function result = safeDivide(arg1,arg2)">safeDivide</a> safeDivide - divides two arrays, checking for 0/0.</li><li><a href="timeString.html" class="code" title="function s = timeString()">timeString</a> timeString returns the current time and date in a convenient string format.</li></ul>This function is called by:<ul style="list-style-image:url(../matlabicon.gif)"><li><a href="makeFeaturePyramids.html" class="code" title="function pyrs = makeFeaturePyramids(img,featureType,salParams,varargin)">makeFeaturePyramids</a> makeFeaturePyramids - creates a pyramid for featureType.</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">% makeBlueYellowPyramid - creates a blue-yellow opponency pyramid.</span>0002 <span class="comment">%</span>0003 <span class="comment">% [byPyr,bPyr,yPyr] = makeBlueYellowPyramid(Image,type)</span>0004 <span class="comment">% Creates a gaussian pyramid from a blue-yellow opponency map (byPyr)</span>0005 <span class="comment">% of image and, if requested, also the separate blue (bPyr)</span>0006 <span class="comment">% and yellow (yPyr) pyramids.</span>0007 <span class="comment">% Image - Image structure of the input image.</span>0008 <span class="comment">% type - 'dyadic' or 'sqrt2'</span>0009 <span class="comment">%</span>0010 <span class="comment">% For a dicussion of the particular definitions of color opponency used here,</span>0011 <span class="comment">% see appendix A.2 of Dirk's PhD thesis:</span>0012 <span class="comment">% Walther, D. (2006). Interactions of visual attention and object recognition:</span>0013 <span class="comment">% Computational modeling, algorithms, and psychophysics. Ph.D. thesis.</span>0014 <span class="comment">% California Institute of Technology.</span>0015 <span class="comment">% http://resolver.caltech.edu/CaltechETD:etd-03072006-135433.</span>0016 <span class="comment">%</span>0017 <span class="comment">% See also makeRedGreenPyramid, getRGB, makeGaussianPyramid,</span>0018 <span class="comment">% makeFeaturePyramids, dataStructures.</span>0019 0020 <span class="comment">% This file is part of the SaliencyToolbox - Copyright (C) 2006-2007</span>0021 <span class="comment">% by Dirk B. Walther and the California Institute of Technology.</span>0022 <span class="comment">% See the enclosed LICENSE.TXT document for the license agreement.</span>0023 <span class="comment">% More information about this project is available at:</span>0024 <span class="comment">% http://www.saliencytoolbox.net</span>0025 0026 <a name="_sub0" href="#_subfunctions" class="code">function [byPyr,bPyr,yPyr] = makeBlueYellowPyramid(image,type)</a>0027 0028 <a href="declareGlobal.html" class="code" title="">declareGlobal</a>;0029 0030 im = <a href="loadImage.html" class="code" title="function imgData = loadImage(Image)">loadImage</a>(image);0031 [r,g,b,in] = <a href="getRGB.html" class="code" title="function [r,g,b,in] = getRGB(img,varargin)">getRGB</a>(im);0032 0033 by = <a href="safeDivide.html" class="code" title="function result = safeDivide(arg1,arg2)">safeDivide</a>(b-min(r,g),in);0034 0035 <span class="keyword">if</span> (nargout >= 1)0036 map.origImage = image;0037 map.label = <span class="string">'Blue/Yellow'</span>;0038 map.data = by;0039 map.date = <a href="timeString.html" class="code" title="function s = timeString()">timeString</a>;0040 byPyr = <a href="makeGaussianPyramid.html" class="code" title="function pyr = makeGaussianPyramid(map,type,varargin)">makeGaussianPyramid</a>(map,type);0041 <span class="keyword">end</span>0042 0043 <span class="keyword">if</span> (nargout >= 2)0044 map.origImage = image;0045 map.label = <span class="string">'Blue'</span>;0046 bb = <a href="clamp.html" class="code" title="function data = clamp(data,bottom,varargin)">clamp</a>(by,0);0047 map.data = bb;0048 map.date = <a href="timeString.html" class="code" title="function s = timeString()">timeString</a>;0049 bPyr = <a href="makeGaussianPyramid.html" class="code" title="function pyr = makeGaussianPyramid(map,type,varargin)">makeGaussianPyramid</a>(map,type);0050 <span class="keyword">end</span>0051 0052 <span class="keyword">if</span> (nargout >= 3)0053 map.origImage = image;0054 map.label = <span class="string">'Yellow'</span>;0055 yy = <a href="clamp.html" class="code" title="function data = clamp(data,bottom,varargin)">clamp</a>(-by,0);0056 map.data = yy;0057 map.date = <a href="timeString.html" class="code" title="function s = timeString()">timeString</a>;0058 yPyr = <a href="makeGaussianPyramid.html" class="code" title="function pyr = makeGaussianPyramid(map,type,varargin)">makeGaussianPyramid</a>(map,type);0059 <span class="keyword">end</span>0060</pre></div><hr><address>Generated on Fri 07-Sep-2007 14:42:18 by <strong><a href="http://www.artefact.tk/software/matlab/m2html/">m2html</a></strong> © 2003</address></body></html>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -