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◆ test_rgb_to_hsv()
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Definition at line 27 of file raster/test/cunit/cu_misc.c.
27 {
28 double rgb[3] = {0, 0, 0};
29 double hsv[3] = {0, 0, 0};
30
31 rt_util_rgb_to_hsv(rgb, hsv);
32 CU_ASSERT_DOUBLE_EQUAL(hsv[0], 0, DBL_EPSILON);
33 CU_ASSERT_DOUBLE_EQUAL(hsv[1], 0, DBL_EPSILON);
34 CU_ASSERT_DOUBLE_EQUAL(hsv[2], 0, DBL_EPSILON);
35
36 rgb[0] = 0;
37 rgb[1] = 0;
38 rgb[2] = 1;
39 rt_util_rgb_to_hsv(rgb, hsv);
40 CU_ASSERT_DOUBLE_EQUAL(hsv[0], 2/3., DBL_EPSILON);
41 CU_ASSERT_DOUBLE_EQUAL(hsv[1], 1, DBL_EPSILON);
42 CU_ASSERT_DOUBLE_EQUAL(hsv[2], 1, DBL_EPSILON);
43
44 rgb[0] = 0;
45 rgb[1] = 0.25;
46 rgb[2] = 0.5;
47 rt_util_rgb_to_hsv(rgb, hsv);
48 CU_ASSERT_DOUBLE_EQUAL(hsv[0], 7/12., DBL_EPSILON);
49 CU_ASSERT_DOUBLE_EQUAL(hsv[1], 1, DBL_EPSILON);
50 CU_ASSERT_DOUBLE_EQUAL(hsv[2], 0.5, DBL_EPSILON);
51
52 rgb[0] = 0.5;
53 rgb[1] = 1;
54 rgb[2] = 0.5;
55 rt_util_rgb_to_hsv(rgb, hsv);
56 CU_ASSERT_DOUBLE_EQUAL(hsv[0], 1/3., DBL_EPSILON);
57 CU_ASSERT_DOUBLE_EQUAL(hsv[1], 0.5, DBL_EPSILON);
58 CU_ASSERT_DOUBLE_EQUAL(hsv[2], 1, DBL_EPSILON);
59
60 rgb[0] = 0.2;
61 rgb[1] = 0.4;
62 rgb[2] = 0.4;
63 rt_util_rgb_to_hsv(rgb, hsv);
64 CU_ASSERT_DOUBLE_EQUAL(hsv[0], 0.5, DBL_EPSILON);
65 CU_ASSERT_DOUBLE_EQUAL(hsv[1], 0.5, DBL_EPSILON);
66 CU_ASSERT_DOUBLE_EQUAL(hsv[2], 0.4, DBL_EPSILON);
67}
rt_errorstate rt_util_rgb_to_hsv(double rgb[3], double hsv[3])
Definition rt_util.c:656
References rt_util_rgb_to_hsv().
Referenced by misc_suite_setup().
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