ViSP
manGrabDisk.cpp
1 /****************************************************************************
2  *
3  * $Id: manGrabDisk.cpp 4574 2014-01-09 08:48:51Z fspindle $
4  *
5  * This file is part of the ViSP software.
6  * Copyright (C) 2005 - 2014 by INRIA. All rights reserved.
7  *
8  * This software is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License
10  * ("GPL") version 2 as published by the Free Software Foundation.
11  * See the file LICENSE.txt at the root directory of this source
12  * distribution for additional information about the GNU GPL.
13  *
14  * For using ViSP with software that can not be combined with the GNU
15  * GPL, please contact INRIA about acquiring a ViSP Professional
16  * Edition License.
17  *
18  * See http://www.irisa.fr/lagadic/visp/visp.html for more information.
19  *
20  * This software was developed at:
21  * INRIA Rennes - Bretagne Atlantique
22  * Campus Universitaire de Beaulieu
23  * 35042 Rennes Cedex
24  * France
25  * http://www.irisa.fr/lagadic
26  *
27  * If you have questions regarding the use of this file, please contact
28  * INRIA at visp@inria.fr
29  *
30  * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
31  * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
32  *
33  *
34  * Description:
35  * Images grabbing example.
36  *
37  * Authors:
38  * Anthony Saunier
39  * Fabien Spindler
40  *
41  *****************************************************************************/
55 #include <visp/vpConfig.h>
56 
57 #include <visp/vpImage.h>
58 #include <visp/vpDiskGrabber.h>
59 
60 int main()
61 {
62  try {
63  vpImage<unsigned char> I; // Grey level image
64 
65  // Declare a framegrabber able to read a sequence of successive
66  // images from the disk
67  vpDiskGrabber g;
68 
69  // Set the path to the directory containing the sequence
70  g.setDirectory("/tmp");
71  // Set the image base name. The directory and the base name constitute
72  // the constant part of the full filename
73  g.setBaseName("image");
74  // Set the step between two images of the sequence
75  g.setStep(3);
76  // Set the number of digits to build the image number
77  g.setNumberOfZero(4);
78  // Set the first frame number of the sequence
79  g.setImageNumber(1);
80  // Set the file extension of the images of the sequence
81  g.setExtension("pgm");
82 
83  // Open the framegrabber by loading the first image of the sequence
84  g.open(I) ;
85 
86  // this is the loop over the image sequence
87  for(int cpt = 0; cpt < 100; cpt++)
88  {
89  // read the image and then increment the image counter so that the next
90  // call to acquire(I) will get the next image
91  g.acquire(I) ;
92  }
93 
94  return 0;
95  return 0;
96  }
97  catch(vpException e) {
98  std::cout << "Catch an exception: " << e << std::endl;
99  return 1;
100  }
101 }
void setBaseName(const char *name)
error that can be emited by ViSP classes.
Definition: vpException.h:76
void setDirectory(const char *dir)
void setNumberOfZero(unsigned int noz)
void setStep(int a)
void setImageNumber(long number)
void open(vpImage< unsigned char > &I)
Class to grab (ie. read) images from the disk.
void setExtension(const char *ext)
void acquire(vpImage< unsigned char > &I)