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71 lines
2.9 KiB
71 lines
2.9 KiB
// Copyright (c) Six Labors and contributors.
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// Licensed under the Apache License, Version 2.0.
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using System.Collections.Generic;
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using SixLabors.ImageSharp.ColorSpaces;
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using SixLabors.ImageSharp.ColorSpaces.Conversion;
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using Xunit;
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namespace SixLabors.ImageSharp.Tests.Colorspaces
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{
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/// <summary>
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/// Tests <see cref="CieXyz"/>-<see cref="CieLab"/> conversions.
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/// </summary>
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/// <remarks>
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/// Test data generated using original colorful library.
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/// </remarks>
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public class CieXyzAndLmsConversionTest
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{
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private static readonly IEqualityComparer<float> FloatRoundingComparer = new FloatRoundingComparer(5);
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/// <summary>
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/// Tests conversion from <see cref="CieXyz"/> (<see cref="Illuminants.D65"/>) to <see cref="Lms"/>.
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/// </summary>
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[Theory]
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[InlineData(0.941428535, 1.040417467, 1.089532651, 0.95047, 1, 1.08883)]
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[InlineData(0, 0, 0, 0, 0, 0)]
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[InlineData(0.850765697, -0.713042594, 0.036973283, 0.95047, 0, 0)]
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[InlineData(0.2664, 1.7135, -0.0685, 0, 1, 0)]
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[InlineData(-0.175737162, 0.039960061, 1.121059368, 0, 0, 1.08883)]
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[InlineData(0.2262677362, 0.0961411609, 0.0484570397, 0.216938, 0.150041, 0.048850)]
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public void Convert_Lms_to_CieXyz(float l, float m, float s, float x, float y, float z)
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{
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// Arrange
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Lms input = new Lms(l, m, s);
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ColorSpaceConverter converter = new ColorSpaceConverter();
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// Act
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CieXyz output = converter.ToCieXyz(input);
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// Assert
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Assert.Equal(x, output.X, FloatRoundingComparer);
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Assert.Equal(y, output.Y, FloatRoundingComparer);
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Assert.Equal(z, output.Z, FloatRoundingComparer);
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}
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/// <summary>
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/// Tests conversion from <see cref="CieXyz"/> (<see cref="Illuminants.D65"/>) to <see cref="Lms"/>.
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/// </summary>
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[Theory]
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[InlineData(0.95047, 1, 1.08883, 0.941428535, 1.040417467, 1.089532651)]
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[InlineData(0, 0, 0, 0, 0, 0)]
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[InlineData(0.95047, 0, 0, 0.850765697, -0.713042594, 0.036973283)]
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[InlineData(0, 1, 0, 0.2664, 1.7135, -0.0685)]
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[InlineData(0, 0, 1.08883, -0.175737162, 0.039960061, 1.121059368)]
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[InlineData(0.216938, 0.150041, 0.048850, 0.2262677362, 0.0961411609, 0.0484570397)]
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public void Convert_CieXyz_to_Lms(float x, float y, float z, float l, float m, float s)
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{
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// Arrange
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CieXyz input = new CieXyz(x, y, z);
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ColorSpaceConverter converter = new ColorSpaceConverter();
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// Act
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Lms output = converter.ToLms(input);
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// Assert
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Assert.Equal(l, output.L, FloatRoundingComparer);
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Assert.Equal(m, output.M, FloatRoundingComparer);
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Assert.Equal(s, output.S, FloatRoundingComparer);
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}
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}
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}
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