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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_write</title> <meta name="keywords" content="avw_write"> <meta name="description" content="avw_write - write Analyze files (*.img & *.hdr)"> <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_write.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_write</h1><h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2><div class="box"><strong>avw_write - write Analyze files (*.img & *.hdr)</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_write(avw, fileprefix, IMGorient, machine) </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_write - write Analyze files (*.img & *.hdr)
This function is a wrapper for
avw_hdr_write and avw_img_write.
avw_write(avw, fileprefix, [IMGorient], [machine])
where the input avw is a struct (see avw_read):
avw.hdr - a struct with image data parameters.
avw.img - a 3D matrix of image data (double precision).
fileprefix - a string, the filename without the .img
extension. If empty, may use avw.fileprefix
IMGorient - optional int; force writing of specified
orientation, as follows:
[], if empty, will use avw.hdr.hist.orient field
0, transverse/axial unflipped (default, radiological)
1, coronal unflipped
2, sagittal unflipped
3, transverse/axial flipped
4, coronal flipped
5, sagittal flipped
This function will set avw.hdr.hist.orient and write the
image data in a corresponding order. This function is in
alpha development, it has not been exhaustively tested
(as of 07/2003).
See the comments and notes throughout avw_hdr_read and
avw_img_read for more information and documentation on
the Analyze orientation options. Orientations 3-5 are
NOT recommended! They are part of the Analyze format,
but only used in Analyze for faster raster graphics
during movies. (Also see the copy of the Analyze 7.5
format pdf in the mri_toolbox doc folder; although
the code is largely self sufficient, that pdf is the
authoritative description).
machine - optional string; see machineformat in fread
for details. The default here is 'ieee-le'.
Tip: to change the data type, set avw.hdr.dime.datatype to:
1 Binary ( 1 bit per voxel)
2 Unsigned character ( 8 bits per voxel)
4 Signed short ( 16 bits per voxel)
8 Signed integer ( 32 bits per voxel)
16 Floating point ( 32 bits per voxel)
32 Complex, 2 floats ( 64 bits per voxel), not supported
64 Double precision ( 64 bits per voxel)
128 Red-Green-Blue (128 bits per voxel), not supported
See also: <a href="avw_read.html" class="code" title="function [ avw, machine ] = avw_read(fileprefix,IMGorient,machine)">avw_read</a>, <a href="avw_hdr_write.html" class="code" title="function avw_hdr_write(avw, fileprefix, machine)">avw_hdr_write</a>, <a href="avw_img_write.html" class="code" title="function avw_img_write(avw, fileprefix, IMGorient, machine)">avw_img_write</a> <a href="avw_hdr_read.html" class="code" title="function [ avw, machine ] = avw_hdr_read(fileprefix, machine)">avw_hdr_read</a>, <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)"><li><a href="avw_img_write.html" class="code" title="function avw_img_write(avw, fileprefix, IMGorient, machine)">avw_img_write</a> avw_img_write - write Analyze image files (*.img)</li><li><a href="avw_write.html" class="code" title="function avw_write(avw, fileprefix, IMGorient, machine)">avw_write</a> avw_write - write Analyze files (*.img & *.hdr)</li></ul>This function is called by:<ul style="list-style-image:url(../matlabicon.gif)"><li><a href="avw_write.html" class="code" title="function avw_write(avw, fileprefix, IMGorient, machine)">avw_write</a> avw_write - write Analyze files (*.img & *.hdr)</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 <a name="_sub0" href="#_subfunctions" class="code">function avw_write(avw, fileprefix, IMGorient, machine)</a>0002 0003 <span class="comment">% avw_write - write Analyze files (*.img & *.hdr)</span>0004 <span class="comment">%</span>0005 <span class="comment">% This function is a wrapper for</span>0006 <span class="comment">% avw_hdr_write and avw_img_write.</span>0007 <span class="comment">%</span>0008 <span class="comment">% avw_write(avw, fileprefix, [IMGorient], [machine])</span>0009 <span class="comment">%</span>0010 <span class="comment">% where the input avw is a struct (see avw_read):</span>0011 <span class="comment">%</span>0012 <span class="comment">% avw.hdr - a struct with image data parameters.</span>0013 <span class="comment">% avw.img - a 3D matrix of image data (double precision).</span>0014 <span class="comment">%</span>0015 <span class="comment">% fileprefix - a string, the filename without the .img</span>0016 <span class="comment">% extension. If empty, may use avw.fileprefix</span>0017 <span class="comment">%</span>0018 <span class="comment">% IMGorient - optional int; force writing of specified</span>0019 <span class="comment">% orientation, as follows:</span>0020 <span class="comment">%</span>0021 <span class="comment">% [], if empty, will use avw.hdr.hist.orient field</span>0022 <span class="comment">% 0, transverse/axial unflipped (default, radiological)</span>0023 <span class="comment">% 1, coronal unflipped</span>0024 <span class="comment">% 2, sagittal unflipped</span>0025 <span class="comment">% 3, transverse/axial flipped</span>0026 <span class="comment">% 4, coronal flipped</span>0027 <span class="comment">% 5, sagittal flipped</span>0028 <span class="comment">%</span>0029 <span class="comment">% This function will set avw.hdr.hist.orient and write the</span>0030 <span class="comment">% image data in a corresponding order. This function is in</span>0031 <span class="comment">% alpha development, it has not been exhaustively tested</span>0032 <span class="comment">% (as of 07/2003).</span>0033 <span class="comment">%</span>0034 <span class="comment">% See the comments and notes throughout avw_hdr_read and</span>0035 <span class="comment">% avw_img_read for more information and documentation on</span>0036 <span class="comment">% the Analyze orientation options. Orientations 3-5 are</span>0037 <span class="comment">% NOT recommended! They are part of the Analyze format,</span>0038 <span class="comment">% but only used in Analyze for faster raster graphics</span>0039 <span class="comment">% during movies. (Also see the copy of the Analyze 7.5</span>0040 <span class="comment">% format pdf in the mri_toolbox doc folder; although</span>0041 <span class="comment">% the code is largely self sufficient, that pdf is the</span>0042 <span class="comment">% authoritative description).</span>0043 <span class="comment">%</span>0044 <span class="comment">% machine - optional string; see machineformat in fread</span>0045 <span class="comment">% for details. The default here is 'ieee-le'.</span>0046 <span class="comment">%</span>0047 <span class="comment">% Tip: to change the data type, set avw.hdr.dime.datatype to:</span>0048 <span class="comment">%</span>0049 <span class="comment">% 1 Binary ( 1 bit per voxel)</span>0050 <span class="comment">% 2 Unsigned character ( 8 bits per voxel)</span>0051 <span class="comment">% 4 Signed short ( 16 bits per voxel)</span>0052 <span class="comment">% 8 Signed integer ( 32 bits per voxel)</span>0053 <span class="comment">% 16 Floating point ( 32 bits per voxel)</span>0054 <span class="comment">% 32 Complex, 2 floats ( 64 bits per voxel), not supported</span>0055 <span class="comment">% 64 Double precision ( 64 bits per voxel)</span>0056 <span class="comment">% 128 Red-Green-Blue (128 bits per voxel), not supported</span>0057 <span class="comment">%</span>0058 <span class="comment">% See also: avw_read, avw_hdr_write, avw_img_write</span>0059 <span class="comment">% avw_hdr_read, avw_img_read</span>0060 <span class="comment">% avw_view</span>0061 <span class="comment">%</span>0062 0063 <span class="comment">% $Revision: 1.2 $ $Date: 2004/02/07 01:41:51 $</span>0064 0065 <span class="comment">% Licence: GNU GPL, no express or implied warranties</span>0066 <span class="comment">% History: 05/2002, Darren.Weber@flinders.edu.au</span>0067 <span class="comment">% The Analyze 7.5 format is copyright</span>0068 <span class="comment">% (c) Copyright, 1986-1995</span>0069 <span class="comment">% Biomedical Imaging Resource, Mayo Foundation</span>0070 <span class="comment">% This code attempts to respect the integrity of</span>0071 <span class="comment">% the format, although no guarantee is given that</span>0072 <span class="comment">% it has been exhaustively tested for compatibility</span>0073 <span class="comment">% with Analyze software (it should be though).</span>0074 <span class="comment">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</span>0075 0076 0077 <span class="comment">%------------------------------------------------------------------------</span>0078 <span class="comment">% Check inputs</span>0079 0080 <span class="keyword">if</span> ~exist(<span class="string">'avw'</span>,<span class="string">'var'</span>),0081 doc <a href="avw_write.html" class="code" title="function avw_write(avw, fileprefix, IMGorient, machine)">avw_write</a>;0082 msg = sprintf(<span class="string">'\n...no input avw.\n'</span>);0083 error(msg);0084 <span class="keyword">elseif</span> isempty(avw),0085 msg = sprintf(<span class="string">'\n...empty input avw.\n'</span>);0086 error(msg);0087 <span class="keyword">elseif</span> ~isfield(avw,<span class="string">'img'</span>),0088 msg = sprintf(<span class="string">'\n...empty input avw.img\n'</span>);0089 error(msg);0090 <span class="keyword">end</span>0091 0092 <span class="keyword">if</span> ~exist(<span class="string">'fileprefix'</span>,<span class="string">'var'</span>),0093 <span class="keyword">if</span> isfield(avw,<span class="string">'fileprefix'</span>),0094 <span class="keyword">if</span> ~isempty(avw.fileprefix),0095 fileprefix = avw.fileprefix;0096 <span class="keyword">else</span>0097 doc <a href="avw_write.html" class="code" title="function avw_write(avw, fileprefix, IMGorient, machine)">avw_write</a>;0098 fprintf(<span class="string">'\nAVW_WRITE: No input fileprefix - see help AVW_write\n'</span>);0099 <span class="keyword">return</span>;0100 <span class="keyword">end</span>0101 <span class="keyword">else</span>0102 doc <a href="avw_write.html" class="code" title="function avw_write(avw, fileprefix, IMGorient, machine)">avw_write</a>;0103 fprintf(<span class="string">'\nAVW_WRITE: No input fileprefix - see help avw_write\n'</span>);0104 <span class="keyword">return</span>;0105 <span class="keyword">end</span>0106 <span class="keyword">end</span>0107 0108 <span class="keyword">if</span> ~exist(<span class="string">'IMGorient'</span>,<span class="string">'var'</span>), IMGorient = <span class="string">''</span>; <span class="keyword">end</span>0109 <span class="keyword">if</span> ~exist(<span class="string">'machine'</span>,<span class="string">'var'</span>), machine = <span class="string">'ieee-le'</span>; <span class="keyword">end</span>0110 0111 <span class="keyword">if</span> findstr(<span class="string">'.hdr'</span>,fileprefix),0112 <span class="comment">% fprintf('AVW_WRITE: Removing .hdr extension from ''%s''\n',fileprefix);</span>0113 fileprefix = strrep(fileprefix,<span class="string">'.hdr'</span>,<span class="string">''</span>);0114 <span class="keyword">end</span>0115 <span class="keyword">if</span> findstr(<span class="string">'.img'</span>,fileprefix),0116 <span class="comment">% fprintf('AVW_WRITE: Removing .img extension from ''%s''\n',fileprefix);</span>0117 fileprefix = strrep(fileprefix,<span class="string">'.img'</span>,<span class="string">''</span>);0118 <span class="keyword">end</span>0119 0120 0121 0122 <span class="comment">%------------------------------------------------------------------------</span>0123 <span class="comment">% MAIN</span>0124 0125 version = <span class="string">'[$Revision: 1.2 $]'</span>;0126 0127 <a href="avw_img_write.html" class="code" title="function avw_img_write(avw, fileprefix, IMGorient, machine)">avw_img_write</a>(avw,fileprefix,IMGorient,machine);0128 0129 <span class="comment">% MUST write header after the image, to ensure any</span>0130 <span class="comment">% orientation changes during image write are saved</span>0131 <span class="comment">% in the header. The header is saved by avw_img_write, so it's</span>0132 <span class="comment">% not necessary to call it here. If it were called here, it</span>0133 <span class="comment">% would be called as such:</span>0134 <span class="comment">% avw_hdr_write(avw,fileprefix,machine);</span>0135 0136 <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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