private TestColor TestColorLAB()
{
var color = ColorLAB.FromColor(testColor);
var color2 = (ColorRGB)color.ToRgb();;
var nativeValue = string.Format("L:{0:0.0#} A:{1:0.0#} B:{2:0.0#}", color.L, color.A, color.B);
return(new TestColor {
Name = "LAB", Value = color2.ToHex(), NativeValue = nativeValue
});
}
public static MonochromaticColorScheme FromColor(ColorRGB color)
{
//if (flatten) {
// var labColors = ColorScheme.GenerateColors (24, 0, .66, .81);
// color = color.NearestFlatColor (labColors);
//}
var lab = (ColorLAB)ColorLAB.FromColor(color);
var dark = new Swatch(DarkColorID, ColorLAB.ToColor(lab.L - 20, lab.A, lab.B));
var darkened = new Swatch(DarkenedColorID, ColorLAB.ToColor(lab.L - 10, lab.A, lab.B));
var primary = new Swatch(PrimaryColorID, color);
var lightened = new Swatch(LightenedColorID, ColorLAB.ToColor(lab.L + 10, lab.A, lab.B));
var light = new Swatch(LightColorID, ColorLAB.ToColor(lab.L + 20, lab.A, lab.B));
return(new MonochromaticColorScheme(new Swatch [] { dark, darkened, primary, lightened, light }));
}
public void RGBtoLABConversion()
{
var rgb = ColorRGB.FromHex("#6653B2");
var lab = (ColorLAB)ColorLAB.FromColor(rgb);
var rgbConverted = (ColorRGB)lab.ToRgb();
// LAB
var l = Math.Truncate(100 * lab.L) / 100;
var a = Math.Truncate(100 * lab.A) / 100;
var b = Math.Truncate(100 * lab.B) / 100;
Assert.AreEqual(l, 41.57);
Assert.AreEqual(a, 31.37);
Assert.AreEqual(b, -52.39); // Differs from Colorize.org which shows -48.16
// RGB Converted
Assert.AreEqual(rgbConverted.Red, 102);
Assert.AreEqual(rgbConverted.Green, 83);
Assert.AreEqual(rgbConverted.Blue, 178);
}
