Visual Servoing Platform version 3.6.0
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testReadImage.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 * Read images on the disk.
33 *
34*****************************************************************************/
35
36#include <visp3/core/vpDebug.h>
37#include <visp3/core/vpImage.h>
38#include <visp3/core/vpIoTools.h>
39#include <visp3/io/vpImageIo.h>
40#include <visp3/io/vpParseArgv.h>
41
42#include <stdlib.h>
43
51// List of allowed command line options
52#define GETOPTARGS "cdi:p:h"
53
54void usage(const char *name, const char *badparam, std::string ipath);
55bool getOptions(int argc, const char **argv, std::string &ipath, std::string &ppath);
56
57/*
58
59 Print the program options.
60
61 \param name : Program name.
62 \param badparam : Bad parameter name.
63 \param ipath: Input image path.
64
65 */
66void usage(const char *name, const char *badparam, std::string ipath)
67{
68 fprintf(stdout, "\n\
69Read images on the disk.\n\
70\n\
71SYNOPSIS\n\
72 %s [-i <input image path>] [-p <personal image path>]\n\
73 [-h]\n\
74",
75 name);
76
77 fprintf(stdout, "\n\
78OPTIONS: Default\n\
79 -i <input image path> %s\n\
80 Set image input path.\n\
81 From this path read \"Klimt/Klimt.pgm,\n\
82 .ppm, .jpeg and .png images.\n\
83 Setting the VISP_INPUT_IMAGE_PATH environment\n\
84 variable produces the same behaviour than using\n\
85 this option.\n\
86\n\
87 -p <personal image path> \n\
88 Path to an image used to test image reading function.\n\
89 Example: -p /my_path_to/image.png\n\
90\n\
91 -h\n\
92 Print the help.\n\n",
93 ipath.c_str());
94
95 if (badparam)
96 fprintf(stdout, "\nERROR: Bad parameter [%s]\n", badparam);
97}
98
110bool getOptions(int argc, const char **argv, std::string &ipath, std::string &ppath)
111{
112 const char *optarg_;
113 int c;
114 while ((c = vpParseArgv::parse(argc, argv, GETOPTARGS, &optarg_)) > 1) {
115
116 switch (c) {
117 case 'i':
118 ipath = optarg_;
119 break;
120 case 'p':
121 ppath = optarg_;
122 break;
123 case 'h':
124 usage(argv[0], NULL, ipath);
125 return false;
126 break;
127
128 case 'c':
129 case 'd':
130 break;
131
132 default:
133 usage(argv[0], optarg_, ipath);
134 return false;
135 break;
136 }
137 }
138
139 if ((c == 1) || (c == -1)) {
140 // standalone param or error
141 usage(argv[0], NULL, ipath);
142 std::cerr << "ERROR: " << std::endl;
143 std::cerr << " Bad argument " << optarg_ << std::endl << std::endl;
144 return false;
145 }
146
147 return true;
148}
149
150int main(int argc, const char **argv)
151{
152 try {
153 std::string env_ipath;
154 std::string opt_ipath;
155 std::string opt_ppath;
156 std::string ipath;
157 std::string filename;
158
159 // Get the visp-images-data package path or VISP_INPUT_IMAGE_PATH
160 // environment variable value
162
163 // Set the default input path
164 if (!env_ipath.empty())
165 ipath = env_ipath;
166
167 // Read the command line options
168 if (getOptions(argc, argv, opt_ipath, opt_ppath) == false) {
169 return EXIT_FAILURE;
170 }
171
172 // Get the option values
173 if (!opt_ipath.empty())
174 ipath = opt_ipath;
175
176 // Compare ipath and env_ipath. If they differ, we take into account
177 // the input path comming from the command line option
178 if (!opt_ipath.empty() && !env_ipath.empty()) {
179 if (ipath != env_ipath) {
180 std::cout << std::endl << "WARNING: " << std::endl;
181 std::cout << " Since -i <visp image path=" << ipath << "> "
182 << " is different from VISP_IMAGE_PATH=" << env_ipath << std::endl
183 << " we skip the environment variable." << std::endl;
184 }
185 }
186
187 //
188 // Here starts really the test
189 //
190
192 // Create a grey level image
193 // vpImage<vpRGBa> I;
195 vpImage<vpRGBa> Irgb;
196
197 if (opt_ppath.empty()) {
198 filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.ppm");
199 vpImageIo::read(I, filename);
200 printf("Read ppm ok\n");
201 filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.pgm");
202 vpImageIo::read(I, filename);
203 printf("Read pgm ok\n");
204 filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.jpeg");
205 vpImageIo::read(I, filename);
206 printf("Read jpeg ok\n");
207 filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.png");
208 vpImageIo::read(I, filename);
209 printf("Read png ok\n");
210
211 filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.ppm");
212 vpImageIo::read(Irgb, filename);
213 printf("Read ppm ok\n");
214 filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.pgm");
215 vpImageIo::read(Irgb, filename);
216 printf("Read pgm ok\n");
217 filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.jpeg");
218 vpImageIo::read(Irgb, filename);
219 printf("Read jpeg ok\n");
220 filename = vpIoTools::createFilePath(ipath, "Klimt/Klimt.png");
221 vpImageIo::read(Irgb, filename);
222 printf("Read png ok\n");
223 } else {
224 filename = opt_ppath;
225 vpImageIo::read(I, filename);
226 printf("Image \"%s\" read successfully\n", filename.c_str());
227 }
228 } catch (const vpException &e) {
229 std::cout << "Catch an exception: " << e.getMessage() << std::endl;
230 return EXIT_FAILURE;
231 }
232 return EXIT_SUCCESS;
233}
error that can be emitted by ViSP classes.
Definition vpException.h:59
const char * getMessage() const
static void read(vpImage< unsigned char > &I, const std::string &filename, int backend=IO_DEFAULT_BACKEND)
Definition of the vpImage class member functions.
Definition vpImage.h:135
static std::string getViSPImagesDataPath()
static std::string createFilePath(const std::string &parent, const std::string &child)
static bool parse(int *argcPtr, const char **argv, vpArgvInfo *argTable, int flags)