1 // Copyright (c) 2018, ETH Zurich and UNC Chapel Hill.
2 // All rights reserved.
3 //
4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are met:
6 //
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9 //
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13 //
14 // * Neither the name of ETH Zurich and UNC Chapel Hill nor the names of
15 // its contributors may be used to endorse or promote products derived
16 // from this software without specific prior written permission.
17 //
18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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29 //
30 // Author: Johannes L. Schoenberger (jsch-at-demuc-dot-de)
31
32 #define TEST_NAME "mvs/normal_map_test"
33 #include "util/testing.h"
34
35 #include "mvs/normal_map.h"
36
37 using namespace colmap;
38 using namespace colmap::mvs;
39
BOOST_AUTO_TEST_CASE(TestEmpty)40 BOOST_AUTO_TEST_CASE(TestEmpty) {
41 NormalMap normal_map;
42 BOOST_CHECK_EQUAL(normal_map.GetWidth(), 0);
43 BOOST_CHECK_EQUAL(normal_map.GetHeight(), 0);
44 BOOST_CHECK_EQUAL(normal_map.GetDepth(), 3);
45 }
46
BOOST_AUTO_TEST_CASE(TestNonEmpty)47 BOOST_AUTO_TEST_CASE(TestNonEmpty) {
48 NormalMap normal_map(1, 2);
49 BOOST_CHECK_EQUAL(normal_map.GetWidth(), 1);
50 BOOST_CHECK_EQUAL(normal_map.GetHeight(), 2);
51 BOOST_CHECK_EQUAL(normal_map.GetDepth(), 3);
52 }
53
BOOST_AUTO_TEST_CASE(TestRescale)54 BOOST_AUTO_TEST_CASE(TestRescale) {
55 NormalMap normal_map(6, 7);
56 normal_map.Rescale(0.5);
57 BOOST_CHECK_EQUAL(normal_map.GetWidth(), 3);
58 BOOST_CHECK_EQUAL(normal_map.GetHeight(), 4);
59 BOOST_CHECK_EQUAL(normal_map.GetDepth(), 3);
60 }
61
BOOST_AUTO_TEST_CASE(TestDownsize)62 BOOST_AUTO_TEST_CASE(TestDownsize) {
63 NormalMap normal_map(6, 7);
64 normal_map.Downsize(2, 4);
65 BOOST_CHECK_EQUAL(normal_map.GetWidth(), 2);
66 BOOST_CHECK_EQUAL(normal_map.GetHeight(), 2);
67 BOOST_CHECK_EQUAL(normal_map.GetDepth(), 3);
68 }
69
BOOST_AUTO_TEST_CASE(TestToBitmap)70 BOOST_AUTO_TEST_CASE(TestToBitmap) {
71 NormalMap normal_map(2, 2);
72 normal_map.Set(0, 0, 0, 0);
73 normal_map.Set(0, 0, 1, 0);
74 normal_map.Set(0, 0, 2, 1);
75 normal_map.Set(0, 1, 0, 0);
76 normal_map.Set(0, 1, 1, 1);
77 normal_map.Set(0, 1, 2, 0);
78 normal_map.Set(1, 0, 0, 1);
79 normal_map.Set(1, 0, 1, 0);
80 normal_map.Set(1, 0, 2, 0);
81 normal_map.Set(1, 1, 0, 1 / std::sqrt(2.0f));
82 normal_map.Set(1, 1, 1, 1 / std::sqrt(2.0f));
83 normal_map.Set(1, 1, 2, 0);
84 const Bitmap bitmap = normal_map.ToBitmap();
85 BOOST_CHECK_EQUAL(bitmap.Width(), normal_map.GetWidth());
86 BOOST_CHECK_EQUAL(bitmap.Height(), normal_map.GetHeight());
87 BOOST_CHECK_EQUAL(bitmap.IsRGB(), true);
88 BitmapColor<uint8_t> color;
89 BOOST_CHECK(bitmap.GetPixel(0, 0, &color));
90 BOOST_CHECK_EQUAL(color, BitmapColor<uint8_t>(128, 128, 0));
91 BOOST_CHECK(bitmap.GetPixel(0, 1, &color));
92 BOOST_CHECK_EQUAL(color, BitmapColor<uint8_t>(0, 128, 0));
93 BOOST_CHECK(bitmap.GetPixel(1, 0, &color));
94 BOOST_CHECK_EQUAL(color, BitmapColor<uint8_t>(128, 0, 0));
95 BOOST_CHECK(bitmap.GetPixel(1, 1, &color));
96 BOOST_CHECK_EQUAL(color, BitmapColor<uint8_t>(37, 37, 0));
97 }
98