1 //
2 // Copyright 2013 Christian Henning
3 // Copyright 2013 Davide Anastasia <davideanastasia@users.sourceforge.net>
4 //
5 // Distributed under the Boost Software License, Version 1.0
6 // See accompanying file LICENSE_1_0.txt or copy at
7 // http://www.boost.org/LICENSE_1_0.txt
8 //
9 #include <boost/gil.hpp>
10 #include <boost/gil/extension/toolbox/color_spaces/xyz.hpp>
11
12 #include <boost/core/lightweight_test.hpp>
13
14 #include <cstdint>
15 #include <limits>
16
17 #ifndef BOOST_GIL_TEST_DEBUG_OSTREAM
18 #include <iostream>
19 #define BOOST_GIL_TEST_DEBUG_OSTREAM std::cout
20 #endif
21
22 #include "test_utility_output_stream.hpp"
23
24 namespace gil = boost::gil;
25
26 const float SKEW = 0.0001f;
27
test_rgb32f_xyz32f_1()28 void test_rgb32f_xyz32f_1()
29 {
30 gil::xyz32f_pixel_t xyz32f;
31 gil::rgb32f_pixel_t p32f(.934351f, 0.785446f, .105858f), p32f_b;
32 gil::color_convert(p32f, xyz32f);
33 gil::color_convert(xyz32f, p32f_b);
34
35 BOOST_GIL_TEST_DEBUG_OSTREAM
36 << p32f[0] << " "
37 << p32f[1] << " "
38 << p32f[2] << " -> "
39 << xyz32f[0] << " "
40 << xyz32f[1] << " "
41 << xyz32f[2] << " -> "
42 << p32f_b[0] << " "
43 << p32f_b[1] << " "
44 << p32f_b[2]
45 << '\n';
46
47 BOOST_TEST_LT(std::fabs(p32f[0] - p32f_b[0]), SKEW);
48 BOOST_TEST_LT(std::fabs(p32f[1] - p32f_b[1]), SKEW);
49 BOOST_TEST_LT(std::fabs(p32f[2] - p32f_b[2]), SKEW);
50 BOOST_TEST_LT(std::fabs(xyz32f[0] - 0.562669), SKEW);
51 BOOST_TEST_LT(std::fabs(xyz32f[1] - 0.597462), SKEW);
52 BOOST_TEST_LT(std::fabs(xyz32f[2] - 0.096050), SKEW);
53 }
54
test_rgb32f_xyz32f_2()55 void test_rgb32f_xyz32f_2()
56 {
57 gil::xyz32f_pixel_t xyz32f;
58 gil::rgb32f_pixel_t p32f(.694617f, 0.173810f, 0.218710f), p32f_b;
59 gil::color_convert(p32f, xyz32f);
60 gil::color_convert(xyz32f, p32f_b);
61
62 BOOST_GIL_TEST_DEBUG_OSTREAM
63 << p32f[0] << " "
64 << p32f[1] << " "
65 << p32f[2] << " -> "
66 << xyz32f[0] << " "
67 << xyz32f[1] << " "
68 << xyz32f[2] << " -> "
69 << p32f_b[0] << " "
70 << p32f_b[1] << " "
71 << p32f_b[2]
72 << '\n';
73
74 BOOST_TEST_LT(std::fabs(p32f[0] - p32f_b[0]), SKEW);
75 BOOST_TEST_LT(std::fabs(p32f[1] - p32f_b[1]), SKEW);
76 BOOST_TEST_LT(std::fabs(p32f[2] - p32f_b[2]), SKEW);
77 BOOST_TEST_LT(std::fabs(xyz32f[0] - 0.197823), SKEW);
78 BOOST_TEST_LT(std::fabs(xyz32f[1] - 0.114731), SKEW);
79 BOOST_TEST_LT(std::fabs(xyz32f[2] - 0.048848), SKEW);
80 }
81
test_xyz32f_rgb32f_1()82 void test_xyz32f_rgb32f_1()
83 {
84 gil::xyz32f_pixel_t xyz32f(.332634f, .436288f, .109853f), xyz32f_b;
85 gil::rgb32f_pixel_t p32f;
86 gil::color_convert(xyz32f, p32f);
87 gil::color_convert(p32f, xyz32f_b);
88
89 BOOST_GIL_TEST_DEBUG_OSTREAM
90 << xyz32f[0] << " "
91 << xyz32f[1] << " "
92 << xyz32f[2] << " -> "
93 << p32f[0] << " "
94 << p32f[1] << " "
95 << p32f[2] << " -> "
96 << xyz32f_b[0] << " "
97 << xyz32f_b[1] << " "
98 << xyz32f_b[2]
99 << '\n';
100
101 BOOST_TEST_LT(std::fabs(xyz32f_b[0] - xyz32f[0]), SKEW);
102 BOOST_TEST_LT(std::fabs(xyz32f_b[1] - xyz32f[1]), SKEW);
103 BOOST_TEST_LT(std::fabs(xyz32f_b[2] - xyz32f[2]), SKEW);
104 BOOST_TEST_LT(std::fabs(p32f[0] - 0.628242), SKEW);
105 BOOST_TEST_LT(std::fabs(p32f[1] - 0.735771), SKEW);
106 BOOST_TEST_LT(std::fabs(p32f[2] - 0.236473), SKEW);
107 }
108
test_xyz32f_rgb32f_2()109 void test_xyz32f_rgb32f_2()
110 {
111 gil::xyz32f_pixel_t xyz32f(.375155f, .352705f, .260025f), xyz32f_b;
112 gil::rgb32f_pixel_t p32f;
113 gil::color_convert(xyz32f, p32f);
114 gil::color_convert(p32f, xyz32f_b);
115
116 BOOST_GIL_TEST_DEBUG_OSTREAM
117 << xyz32f[0] << " "
118 << xyz32f[1] << " "
119 << xyz32f[2] << " -> "
120 << p32f[0] << " "
121 << p32f[1] << " "
122 << p32f[2] << " -> "
123 << xyz32f_b[0] << " "
124 << xyz32f_b[1] << " "
125 << xyz32f_b[2]
126 << '\n';
127
128 BOOST_TEST_LT(std::fabs(xyz32f_b[0] - xyz32f[0]), SKEW);
129 BOOST_TEST_LT(std::fabs(xyz32f_b[1] - xyz32f[1]), SKEW);
130 BOOST_TEST_LT(std::fabs(xyz32f_b[2] - xyz32f[2]), SKEW);
131 BOOST_TEST_LT(std::fabs(p32f[0] - 0.763580), SKEW);
132 BOOST_TEST_LT(std::fabs(p32f[1] - 0.591622), SKEW);
133 BOOST_TEST_LT(std::fabs(p32f[2] - 0.510392), SKEW);
134 }
135
test_rgb8u_xyz32f_1()136 void test_rgb8u_xyz32f_1()
137 {
138 gil::xyz32f_pixel_t xyz32f;
139 gil::rgb8_pixel_t p8u(177, 44, 56), p8u_b;
140 gil::color_convert(p8u, xyz32f);
141 gil::color_convert(xyz32f, p8u_b);
142
143 BOOST_GIL_TEST_DEBUG_OSTREAM
144 << static_cast<int>(p8u[0]) << " "
145 << static_cast<int>(p8u[1]) << " "
146 << static_cast<int>(p8u[2]) << " -> "
147 << xyz32f[0] << " "
148 << xyz32f[1] << " "
149 << xyz32f[2] << " -> "
150 << static_cast<int>(p8u_b[0]) << " "
151 << static_cast<int>(p8u_b[1]) << " "
152 << static_cast<int>(p8u_b[2])
153 << '\n';
154
155 BOOST_TEST_EQ(p8u[0], p8u_b[0]);
156 BOOST_TEST_EQ(p8u[1], p8u_b[1]);
157 BOOST_TEST_EQ(p8u[2], p8u_b[2]);
158 }
159
test_rgb8u_xyz32f_2()160 void test_rgb8u_xyz32f_2()
161 {
162 gil::xyz32f_pixel_t xyz32f;
163 gil::rgb8_pixel_t p8u(72, 90, 165), p8u_b;
164 gil::color_convert(p8u, xyz32f);
165 gil::color_convert(xyz32f, p8u_b);
166
167 BOOST_GIL_TEST_DEBUG_OSTREAM
168 << static_cast<int>(p8u[0]) << " "
169 << static_cast<int>(p8u[1]) << " "
170 << static_cast<int>(p8u[2]) << " -> "
171 << xyz32f[0] << " "
172 << xyz32f[1] << " "
173 << xyz32f[2] << " -> "
174 << static_cast<int>(p8u_b[0]) << " "
175 << static_cast<int>(p8u_b[1]) << " "
176 << static_cast<int>(p8u_b[2])
177 << '\n';
178
179 BOOST_TEST_EQ(p8u[0], p8u_b[0]);
180 BOOST_TEST_EQ(p8u[1], p8u_b[1]);
181 BOOST_TEST_EQ(p8u[2], p8u_b[2]);
182 }
183
test_rgb16u_xyz32f_1()184 void test_rgb16u_xyz32f_1()
185 {
186 gil::xyz32f_pixel_t xyz32f;
187 gil::rgb16_pixel_t p16u(12564, 20657, 200), p16u_b;
188 gil::color_convert(p16u, xyz32f);
189 gil::color_convert(xyz32f, p16u_b);
190
191 BOOST_GIL_TEST_DEBUG_OSTREAM
192 << static_cast<int>(p16u[0]) << " "
193 << static_cast<int>(p16u[1]) << " "
194 << static_cast<int>(p16u[2]) << " -> "
195 << xyz32f[0] << " "
196 << xyz32f[1] << " "
197 << xyz32f[2] << " -> "
198 << static_cast<int>(p16u_b[0]) << " "
199 << static_cast<int>(p16u_b[1]) << " "
200 << static_cast<int>(p16u_b[2])
201 << '\n';
202
203 BOOST_TEST_EQ(p16u[0], p16u_b[0]);
204 BOOST_TEST_EQ(p16u[1], p16u_b[1]);
205 BOOST_TEST_EQ(p16u[2], p16u_b[2]);
206 }
207
main()208 int main()
209 {
210 test_rgb32f_xyz32f_1();
211 test_rgb32f_xyz32f_2();
212 test_xyz32f_rgb32f_1();
213 test_xyz32f_rgb32f_2();
214 test_rgb8u_xyz32f_1();
215 test_rgb8u_xyz32f_2();
216 test_rgb16u_xyz32f_1();
217
218 return ::boost::report_errors();
219 }
220