Visual Servoing Platform version 3.5.0
manGrabDisk.cpp
1/****************************************************************************
2 *
3 * ViSP, open source Visual Servoing Platform software.
4 * Copyright (C) 2005 - 2019 by Inria. All rights reserved.
5 *
6 * This software is free software; you can redistribute it and/or modify
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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 http://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
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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 * Authors:
35 * Anthony Saunier
36 * Fabien Spindler
37 *
38 *****************************************************************************/
52#include <visp3/core/vpConfig.h>
53
54#include <visp3/core/vpImage.h>
55#include <visp3/io/vpDiskGrabber.h>
56
57int main()
58{
59 try {
60 vpImage<unsigned char> I; // Grey level image
61
62 // Declare a framegrabber able to read a sequence of successive
63 // images from the disk
65
66 // Set the path to the directory containing the sequence
67 g.setDirectory("/tmp");
68 // Set the image base name. The directory and the base name constitute
69 // the constant part of the full filename
70 g.setBaseName("image");
71 // Set the step between two images of the sequence
72 g.setStep(3);
73 // Set the number of digits to build the image number
74 g.setNumberOfZero(4);
75 // Set the first frame number of the sequence
76 g.setImageNumber(1);
77 // Set the file extension of the images of the sequence
78 g.setExtension("pgm");
79
80 // Open the framegrabber by loading the first image of the sequence
81 g.open(I);
82
83 // this is the loop over the image sequence
84 for (int cpt = 0; cpt < 100; cpt++) {
85 // read the image and then increment the image counter so that the next
86 // call to acquire(I) will get the next image
87 g.acquire(I);
88 }
89
90 return EXIT_SUCCESS;
91 } catch (const vpException &e) {
92 std::cout << "Catch an exception: " << e << std::endl;
93 return EXIT_FAILURE;
94 }
95}
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 emited by ViSP classes.
Definition: vpException.h:72