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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 avw_flip</title> <meta name="keywords" content="avw_flip"> <meta name="description" content="AVW_FLIP - ortho-flip Analyze data image (avw.img)"> <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">mri_toolbox</a> > avw_flip.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 mri_toolbox <img alt=">" border="0" src="../right.png"></a></td></tr></table>--><h1>avw_flip</h1><h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="box"><strong>AVW_FLIP - ortho-flip Analyze data image (avw.img)</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 [ avw ] = avw_flip(avw,dims) </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"> AVW_FLIP - ortho-flip Analyze data image (avw.img)
[ avw ] = avw_flip(avw,dims)
where avw is the data struct returned from avw_img_read
and dims is a cell array of strings, eg: dims = {'x','y','z'}
with any number of cells, in any order.
For each cell of dims, the dimension of avw.img is flipped,
independently of all other dimensions and the order in which
they are specified. There are no 3D rotations, which are
not orthogonal flips.
This function will most likely invalidate the .img orientation,
so use of it is not recommended. There is no attempt in this
function to maintain the validity of the avw.hdr.hist.orient
field. In fact, this will be set to an invalid value (9).
see also <a href="avw_img_read.html" class="code" title="function [ avw, machine ] = avw_img_read(fileprefix,IMGorient,machine)">AVW_IMG_READ</a>, <a href="avw_view.html" class="code" title="function [ varargout ] = avw_view(avw,parent,command),">AVW_VIEW</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)"></ul>This function is called by:<ul style="list-style-image:url(../matlabicon.gif)"></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 <a name="_sub0" href="#_subfunctions" class="code">function [ avw ] = avw_flip(avw,dims)</a>0002 0003 <span class="comment">% AVW_FLIP - ortho-flip Analyze data image (avw.img)</span>0004 <span class="comment">%</span>0005 <span class="comment">% [ avw ] = avw_flip(avw,dims)</span>0006 <span class="comment">%</span>0007 <span class="comment">% where avw is the data struct returned from avw_img_read</span>0008 <span class="comment">% and dims is a cell array of strings, eg: dims = {'x','y','z'}</span>0009 <span class="comment">% with any number of cells, in any order.</span>0010 <span class="comment">%</span>0011 <span class="comment">% For each cell of dims, the dimension of avw.img is flipped,</span>0012 <span class="comment">% independently of all other dimensions and the order in which</span>0013 <span class="comment">% they are specified. There are no 3D rotations, which are</span>0014 <span class="comment">% not orthogonal flips.</span>0015 <span class="comment">%</span>0016 <span class="comment">% This function will most likely invalidate the .img orientation,</span>0017 <span class="comment">% so use of it is not recommended. There is no attempt in this</span>0018 <span class="comment">% function to maintain the validity of the avw.hdr.hist.orient</span>0019 <span class="comment">% field. In fact, this will be set to an invalid value (9).</span>0020 <span class="comment">%</span>0021 <span class="comment">% see also AVW_IMG_READ, AVW_VIEW</span>0022 <span class="comment">%</span>0023 0024 0025 <span class="comment">% $Revision: 1.6 $ $Date: 2004/02/07 01:41:51 $</span>0026 0027 <span class="comment">% Licence: GNU GPL, no express or implied warranties</span>0028 <span class="comment">% History: 01/2003, Darren.Weber@flinders.edu.au</span>0029 <span class="comment">%</span>0030 <span class="comment">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span>0031 0032 version = <span class="string">'[$Revision: 1.6 $]'</span>;0033 fprintf(<span class="string">'\nAVW_FLIP [v%s]\n'</span>,version(12:16));0034 0035 fprintf(<span class="string">'...warning, this function can invalidate the .img orientation,\n'</span>);0036 fprintf(<span class="string">'...setting avw.hdr.hist.orient to invalid value = 9.\n'</span>);0037 avw.hdr.hist.orient = uint8(9);0038 0039 <span class="keyword">for</span> i = 1:length(dims),0040 dim = lower(dims{i});0041 <span class="keyword">switch</span> dim,0042 <span class="keyword">case</span> <span class="string">'x'</span>,0043 fprintf(<span class="string">'...flipping X\n'</span>);0044 xdim = size(avw.img,1);0045 avw.img = avw.img(xdim:-1:1,:,:);0046 <span class="keyword">case</span> <span class="string">'y'</span>,0047 fprintf(<span class="string">'...flipping Y\n'</span>);0048 ydim = size(avw.img,2);0049 avw.img = avw.img(:,ydim:-1:1,:);0050 <span class="keyword">case</span> <span class="string">'z'</span>,0051 fprintf(<span class="string">'...flipping Z\n'</span>);0052 zdim = size(avw.img,3);0053 avw.img = avw.img(:,:,zdim:-1:1);0054 <span class="keyword">end</span>0055 <span class="keyword">end</span>0056 0057 <span class="keyword">return</span></pre></div><hr><address>Generated on Fri 21-May-2004 12:38:21 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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