Visual Servoing Platform version 3.6.0
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manGrabDisk.cpp
1/****************************************************************************
2 *
3 * ViSP, open source Visual Servoing Platform software.
4 * Copyright (C) 2005 - 2023 by Inria. All rights reserved.
5 *
6 * This software is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 * See the file LICENSE.txt at the root directory of this source
11 * distribution for additional information about the GNU GPL.
12 *
13 * For using ViSP with software that can not be combined with the GNU
14 * GPL, please contact Inria about acquiring a ViSP Professional
15 * Edition License.
16 *
17 * See https://visp.inria.fr for more information.
18 *
19 * This software was developed at:
20 * Inria Rennes - Bretagne Atlantique
21 * Campus Universitaire de Beaulieu
22 * 35042 Rennes Cedex
23 * France
24 *
25 * If you have questions regarding the use of this file, please contact
26 * Inria at visp@inria.fr
27 *
28 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
29 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
30 *
31 * Description:
32 * Images grabbing example.
33 *
34*****************************************************************************/
48#include <visp3/core/vpConfig.h>
49
50#include <visp3/core/vpImage.h>
51#include <visp3/io/vpDiskGrabber.h>
52
53int main()
54{
55 try {
56 vpImage<unsigned char> I; // Grey level image
57
58 // Declare a framegrabber able to read a sequence of successive
59 // images from the disk
61
62 // Set the path to the directory containing the sequence
63 g.setDirectory("/tmp");
64 // Set the image base name. The directory and the base name constitute
65 // the constant part of the full filename
66 g.setBaseName("image");
67 // Set the step between two images of the sequence
68 g.setStep(3);
69 // Set the number of digits to build the image number
70 g.setNumberOfZero(4);
71 // Set the first frame number of the sequence
72 g.setImageNumber(1);
73 // Set the file extension of the images of the sequence
74 g.setExtension("pgm");
75
76 // Open the framegrabber by loading the first image of the sequence
77 g.open(I);
78
79 // this is the loop over the image sequence
80 for (int cpt = 0; cpt < 100; cpt++) {
81 // read the image and then increment the image counter so that the next
82 // call to acquire(I) will get the next image
83 g.acquire(I);
84 }
85
86 return EXIT_SUCCESS;
87 }
88 catch (const vpException &e) {
89 std::cout << "Catch an exception: " << e << std::endl;
90 return EXIT_FAILURE;
91 }
92}
Class to grab (ie. read) images from the disk.
void setStep(long step)
void setDirectory(const std::string &dir)
void setExtension(const std::string &ext)
void open(vpImage< unsigned char > &I)
void setImageNumber(long number)
void setNumberOfZero(unsigned int noz)
void setBaseName(const std::string &name)
void acquire(vpImage< unsigned char > &I)
error that can be emitted by ViSP classes.
Definition vpException.h:59
Definition of the vpImage class member functions.
Definition vpImage.h:135