Visual Servoing Platform version 3.6.0
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testImageAddSub.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 * Test image addition / subtraction.
33 *
34*****************************************************************************/
35
36#include <visp3/core/vpConfig.h>
37
44#if defined(VISP_HAVE_CATCH2)
45#define CATCH_CONFIG_RUNNER
46#include "common.hpp"
47#include <catch.hpp>
48#include <visp3/core/vpImageTools.h>
49#include <visp3/core/vpIoTools.h>
50#include <visp3/io/vpImageIo.h>
51
52TEST_CASE("Test vpImageTools::imageAdd()", "[image_add]")
53{
54 const std::string filepath = vpIoTools::createFilePath(vpIoTools::getViSPImagesDataPath(), "Klimt/Klimt.pgm");
56 vpImageIo::read(I, filepath);
57
58 SECTION("I + Inull = I")
59 {
60 vpImage<unsigned char> Inull(I.getHeight(), I.getWidth(), 0);
62 vpImageTools::imageAdd(I, Inull, Iadd);
63 CHECK((Iadd == I));
64 }
65
66 SECTION("I + I without saturation")
67 {
68 const bool saturation = false;
70 common_tools::imageAddRef(I, I, Iref, saturation);
71
73 vpImageTools::imageAdd(I, I, Iadd, saturation);
74 CHECK((Iadd == Iref));
75 }
76
77 SECTION("I + I with saturation")
78 {
79 const bool saturation = true;
81 common_tools::imageAddRef(I, I, Iref, saturation);
82
84 vpImageTools::imageAdd(I, I, Iadd, saturation);
85 CHECK((Iadd == Iref));
86 }
87}
88
89TEST_CASE("Test vpImageTools::imageDifference()", "[image_difference]")
90{
91 const std::string filepath = vpIoTools::createFilePath(vpIoTools::getViSPImagesDataPath(), "Klimt/Klimt.pgm");
93 vpImageIo::read(I, filepath);
94
95 SECTION("I - Inull = I")
96 {
97 vpImage<unsigned char> Inull(I.getHeight(), I.getWidth(), 0);
99 vpImageTools::imageSubtract(I, Inull, Isub);
100 CHECK((Isub == I));
101 }
102
103 SECTION("I - I2 without saturation")
104 {
105 const bool saturation = false;
108 common_tools::fill(I2);
109
110 common_tools::imageSubtractRef(I, I2, Iref, saturation);
111
113 vpImageTools::imageSubtract(I, I2, Isub, saturation);
114 CHECK((Isub == Iref));
115 }
116
117 SECTION("I - I2 with saturation ")
118 {
119 const bool saturation = true;
122 common_tools::fill(I2);
123
124 common_tools::imageSubtractRef(I, I2, Iref, saturation);
125
127 vpImageTools::imageSubtract(I, I2, Isub, saturation);
128 CHECK((Isub == Iref));
129 }
130}
131
132int main(int argc, char *argv[])
133{
134 Catch::Session session; // There must be exactly one instance
135
136 // Let Catch (using Clara) parse the command line
137 session.applyCommandLine(argc, argv);
138
139 int numFailed = session.run();
140
141 // numFailed is clamped to 255 as some unices only use the lower 8 bits.
142 // This clamping has already been applied, so just return it here
143 // You can also do any post run clean-up here
144 return numFailed;
145}
146#else
147int main() { return EXIT_SUCCESS; }
148#endif
static void read(vpImage< unsigned char > &I, const std::string &filename, int backend=IO_DEFAULT_BACKEND)
static void imageSubtract(const vpImage< unsigned char > &I1, const vpImage< unsigned char > &I2, vpImage< unsigned char > &Ires, bool saturate=false)
static void imageAdd(const vpImage< unsigned char > &I1, const vpImage< unsigned char > &I2, vpImage< unsigned char > &Ires, bool saturate=false)
Definition of the vpImage class member functions.
Definition vpImage.h:135
unsigned int getWidth() const
Definition vpImage.h:242
unsigned int getHeight() const
Definition vpImage.h:184
static std::string getViSPImagesDataPath()
static std::string createFilePath(const std::string &parent, const std::string &child)