/// <summary>
/// Adapts linear RGB color from the source working space to working space set in <see cref="TargetRGBWorkingSpace"/>.
/// </summary>
public LinearRGBColor Adapt(LinearRGBColor color)
{
if (color == null)
{
throw new ArgumentNullException("color");
}
if (!IsChromaticAdaptationPerformed)
{
throw new InvalidOperationException("Cannot perform chromatic adaptation, provide chromatic adaptation method and white point.");
}
if (color.WorkingSpace.Equals(TargetRGBWorkingSpace))
{
return(color);
}
// conversion to XYZ
var converterToXYZ = GetLinearRGBToXYZConverter(color.WorkingSpace);
XYZColor unadapted = converterToXYZ.Convert(color);
// adaptation
XYZColor adapted = ChromaticAdaptation.Transform(unadapted, color.WorkingSpace.WhitePoint, TargetRGBWorkingSpace.WhitePoint);
// conversion back to RGB
var converterToRGB = GetXYZToLinearRGBConverter(TargetRGBWorkingSpace);
LinearRGBColor result = converterToRGB.Convert(adapted);
return(result);
}
public LinearRGBColor ToLinearRGB(XYZColor color)
{
if (color == null)
{
throw new ArgumentNullException("color");
}
// adaptation
XYZColor adapted = TargetRGBWorkingSpace.WhitePoint.Equals(WhitePoint) || !IsChromaticAdaptationPerformed
? color
: ChromaticAdaptation.Transform(color, WhitePoint, TargetRGBWorkingSpace.WhitePoint);
// conversion to linear RGB
var xyzConverter = GetXYZToLinearRGBConverter(TargetRGBWorkingSpace);
LinearRGBColor result = xyzConverter.Convert(adapted);
return(result);
}
public LuvColor ToLuv(XYZColor color)
{
if (color == null)
{
throw new ArgumentNullException("color");
}
// adaptation
XYZColor adapted = !WhitePoint.Equals(TargetLuvWhitePoint) && IsChromaticAdaptationPerformed
? ChromaticAdaptation.Transform(color, WhitePoint, TargetLuvWhitePoint)
: color;
// conversion
var converter = new XYZToLuvConverter(TargetLuvWhitePoint);
LuvColor result = converter.Convert(adapted);
return(result);
}
/// <summary>
/// Performs chromatic adaptation of given XYZ color.
/// Target white point is <see cref="WhitePoint"/>.
/// </summary>
public XYZColor Adapt(XYZColor color, XYZColor sourceWhitePoint)
{
if (color == null)
{
throw new ArgumentNullException("color");
}
if (sourceWhitePoint == null)
{
throw new ArgumentNullException("sourceWhitePoint");
}
if (!IsChromaticAdaptationPerformed)
{
throw new InvalidOperationException("Cannot perform chromatic adaptation, provide chromatic adaptation method and white point.");
}
XYZColor result = ChromaticAdaptation.Transform(color, sourceWhitePoint, WhitePoint);
return(result);
}
