HSLType Struct Reference

#include <KoColorSpaceMaths.h>

Static Public Member Functions
template<class TReal >
static TReal	getLightness (TReal r, TReal g, TReal b)
template<class TReal >
static TReal	getSaturation (TReal r, TReal g, TReal b)

Static Public Attributes
static constexpr bool	lightnessIsAverage = true

Detailed Description

Definition at line 944 of file KoColorSpaceMaths.h.

Member Function Documentation

getLightness()

template<class TReal >

static TReal HSLType::getLightness ( TReal r, TReal g, TReal b )

inlinestatic

Definition at line 947 of file KoColorSpaceMaths.h.

                                                                {
        TReal max = Arithmetic::max(r, g, b);
        TReal min = Arithmetic::min(r, g, b);
        return (max + min) * TReal(0.5);
    }

References Arithmetic::max(), and Arithmetic::min().

getSaturation()

template<class TReal >

static TReal HSLType::getSaturation ( TReal r, TReal g, TReal b )

inlinestatic

Definition at line 954 of file KoColorSpaceMaths.h.

                                                                 {
        TReal max    = Arithmetic::max(r, g, b);
        TReal min    = Arithmetic::min(r, g, b);
        TReal chroma = max - min;
        TReal light  = (max + min) * TReal(0.5);
        TReal div    = TReal(1.0) - std::abs(TReal(2.0)*light - TReal(1.0));
        
        if(div > std::numeric_limits<TReal>::epsilon())
            return chroma / div;
        
        return TReal(0.0);
    }

References Arithmetic::max(), and Arithmetic::min().

Member Data Documentation

lightnessIsAverage

constexpr bool HSLType::lightnessIsAverage = true

staticconstexpr

Definition at line 967 of file KoColorSpaceMaths.h.

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The documentation for this struct was generated from the following file:

• libs/pigment/KoColorSpaceMaths.h