source: trunk/src/uvmat_doc/FUNCTIONS_DOC/read_image.html @ 37

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15<div><a href="../index.html">Home</a> &gt;  <a href="index.html">.</a> &gt; read_image.m</div>
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19
20<h1>read_image
21</h1>
22
23<h2><a name="_name"></a>PURPOSE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
24<div class="box"><strong>'read_image': reads an image from a single file or a movie file</strong></div>
25
26<h2><a name="_synopsis"></a>SYNOPSIS <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
27<div class="box"><strong>function [A,error]=read_image(filename,NomType,num); </strong></div>
28
29<h2><a name="_description"></a>DESCRIPTION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
30<div class="fragment"><pre class="comment">'read_image': reads an image from a single file or a movie file
31read  images in different formats.</pre></div>
32
33<!-- crossreference -->
34<h2><a name="_cross"></a>CROSS-REFERENCE INFORMATION <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
35This function calls:
36<ul style="list-style-image:url(../matlabicon.gif)">
37</ul>
38This function is called by:
39<ul style="list-style-image:url(../matlabicon.gif)">
40<li><a href="civ.html" class="code" title="function varargout = civ(varargin)">civ</a>  'civ': function associated with the interface 'civ.fig' for PIV, spline interpolation and stereo PIV (patch)</li><li><a href="civ_3D.html" class="code" title="function varargout = civ_3D(varargin)">civ_3D</a>        'civ_3D': function associated with the interface 'civ_3D.fig' for PIV in volume</li><li><a href="series.html" class="code" title="function varargout = series(varargin)">series</a>     'series': master function associated to the GUI series.m for analysis field series</li><li><a href="uvmat.html" class="code" title="function varargout = uvmat(varargin)">uvmat</a>     'uvmat': function associated with the GUI 'uvmat.fig' for images and data field visualization</li></ul>
41<!-- crossreference -->
42
43
44<h2><a name="_source"></a>SOURCE CODE <a href="#_top"><img alt="^" border="0" src="../up.png"></a></h2>
45<div class="fragment"><pre>0001 <span class="comment">%'read_image': reads an image from a single file or a movie file</span>
460002 <a name="_sub0" href="#_subfunctions" class="code">function [A,error]=read_image(filename,NomType,num);</a>
470003  <span class="comment">%read  images in different formats.</span>
480004 A=[]; <span class="comment">%default</span>
490005 error=0; <span class="comment">%default</span>
500006 <span class="keyword">if</span> ~exist(filename,<span class="string">'file'</span>)
510007     error=<span class="string">'input file not found in read_image'</span>
520008     <span class="keyword">return</span>
530009 <span class="keyword">end</span>
540010 testframe=0;
550011 <span class="keyword">if</span> ~exist(<span class="string">'NomType'</span>,<span class="string">'var'</span>)
560012     NomType=[];
570013 <span class="keyword">end</span>
580014 <span class="keyword">if</span> ~exist(<span class="string">'num'</span>,<span class="string">'var'</span>)
590015     num=1;
600016 <span class="keyword">end</span>
610017 [pth,fl,ext]=fileparts(filename);
620018 <span class="keyword">if</span> isequal(lower(ext),<span class="string">'.avi'</span>)
630019     mov=aviread(filename,num);
640020     A=frame2im(mov(1));
650021 <span class="keyword">elseif</span> isequal(lower(ext),<span class="string">'.vol'</span>)
660022      A=imread(filename);
670023 <span class="keyword">else</span>
680024      form=imformats(ext([2:end]));
690025      <span class="keyword">if</span> ~isempty(form)<span class="comment">% if the extension corresponds to an image format recognized by Matlab</span>
700026          <span class="keyword">if</span> isequal(NomType,<span class="string">'*'</span>);
710027             A=imread(filename,num);
720028          <span class="keyword">else</span> 
730029            A=imread(filename); 
740030          <span class="keyword">end</span>
750031      <span class="keyword">else</span>
760032          error=[<span class="string">'ERROR in read_image: file extension not recognized by matlab as image'</span>];
770033          <span class="keyword">return</span>
780034      <span class="keyword">end</span>
790035 <span class="keyword">end</span>
800036</pre></div>
81<hr><address>Generated on Fri 13-Nov-2009 11:17:03 by <strong><a href="http://www.artefact.tk/software/matlab/m2html/">m2html</a></strong> &copy; 2003</address>
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