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manGrabDisk.cpp
1 /****************************************************************************
2  *
3  * $Id: manGrabDisk.cpp 4056 2013-01-05 13:04:42Z fspindle $
4  *
5  * This file is part of the ViSP software.
6  * Copyright (C) 2005 - 2013 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  vpImage<unsigned char> I; // Grey level image
63 
64  // Declare a framegrabber able to read a sequence of successive
65  // images from the disk
66  vpDiskGrabber g;
67 
68  // Set the path to the directory containing the sequence
69  g.setDirectory("/tmp");
70  // Set the image base name. The directory and the base name constitute
71  // the constant part of the full filename
72  g.setBaseName("image");
73  // Set the step between two images of the sequence
74  g.setStep(3);
75  // Set the number of digits to build the image number
76  g.setNumberOfZero(4);
77  // Set the first frame number of the sequence
78  g.setImageNumber(1);
79  // Set the file extension of the images of the sequence
80  g.setExtension("pgm");
81 
82  // Open the framegrabber by loading the first image of the sequence
83  g.open(I) ;
84 
85  // this is the loop over the image sequence
86  for(int cpt = 0; cpt < 100; cpt++)
87  {
88  // read the image and then increment the image counter so that the next
89  // call to acquire(I) will get the next image
90  g.acquire(I) ;
91  }
92 
93  return 0;
94 }
void setBaseName(const char *name)
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)