HCYPolicy Struct Reference

Public Member Functions
float	fixupChroma (float c, float v)
bool	hasChroma (float v)
	HCYPolicy (float _rCoeff=0.299f, float _gCoeff=0.587f, float _bCoeff=0.114f)
float	valueFromRGB (float r, float g, float b, float m, float M)
void	writeRGB (float *r, float *g, float *b, int sextant, float x, float c, float v)

Public Attributes
const float	bCoeff = 0.114f
const float	gCoeff = 0.587f
const float	rCoeff = 0.299f

Detailed Description

Definition at line 183 of file kis_hsv_adjustment.cpp.

Constructor & Destructor Documentation

HCYPolicy()

HCYPolicy::HCYPolicy ( float _rCoeff = 0.299f, float _gCoeff = 0.587f, float _bCoeff = 0.114f )

inline

Definition at line 185 of file kis_hsv_adjustment.cpp.

        : rCoeff(_rCoeff),
          gCoeff(_gCoeff),
          bCoeff(_bCoeff)
    {
    }

Member Function Documentation

fixupChroma()

float HCYPolicy::fixupChroma ( float c, float v )

inline

Definition at line 207 of file kis_hsv_adjustment.cpp.

                                               {
        Q_UNUSED(v);
        // NOTE: no sliding in HCY, because the shape of the triangle
        //       depends on Hue, which complicated code a lot. And it
        //       seems to work fine without it :)
        return c;
    }

References v.

hasChroma()

bool HCYPolicy::hasChroma ( float v )

inline

Definition at line 196 of file kis_hsv_adjustment.cpp.

                                   {
        static const float EPSILON = 1e-9f;
        return v > EPSILON && v < 1.0f - EPSILON;
    }

References EPSILON, and v.

valueFromRGB()

float HCYPolicy::valueFromRGB ( float r, float g, float b, float m, float M )

inline

Definition at line 201 of file kis_hsv_adjustment.cpp.

                                                                           {
        Q_UNUSED(m);
        Q_UNUSED(M);
        return rCoeff * r + gCoeff * g + bCoeff * b;
    }

References bCoeff, gCoeff, and rCoeff.

writeRGB()

void HCYPolicy::writeRGB ( float * r, float * g, float * b, int sextant, float x, float c, float v )

inline

Definition at line 215 of file kis_hsv_adjustment.cpp.

                                                    {
 
 
        switch (sextant) {
        case 0: *r = c; *g = x; *b = 0; break;
        case 1: *r = x; *g = c; *b = 0; break;
        case 2: *r = 0; *g = c; *b = x; break;
        case 3: *r = 0; *g = x; *b = c; break;
        case 4: *r = x; *g = 0; *b = c; break;
        case 5: *r = c; *g = 0; *b = x; break;
        }
 
        const float m = v - *r * rCoeff - *g * gCoeff - *b * bCoeff;
        *r += m;
        *g += m;
        *b += m;
    }

References bCoeff, gCoeff, rCoeff, and v.

Member Data Documentation

bCoeff

const float HCYPolicy::bCoeff = 0.114f

Definition at line 194 of file kis_hsv_adjustment.cpp.

gCoeff

const float HCYPolicy::gCoeff = 0.587f

Definition at line 193 of file kis_hsv_adjustment.cpp.

rCoeff

const float HCYPolicy::rCoeff = 0.299f

Definition at line 192 of file kis_hsv_adjustment.cpp.

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

• plugins/color/colorspaceextensions/kis_hsv_adjustment.cpp