KisColorBalanceMath Class Reference

#include <kis_color_balance_adjustment.h>

Public Member Functions
float	colorBalanceTransform (float value, float lightness, float shadows, float midtones, float highlights)
	KisColorBalanceMath ()

Detailed Description

Definition at line 24 of file kis_color_balance_adjustment.h.

Constructor & Destructor Documentation

KisColorBalanceMath()

KisColorBalanceMath::KisColorBalanceMath

(

)

Definition at line 204 of file kis_color_balance_adjustment.cpp.

{}

Member Function Documentation

colorBalanceTransform()

float KisColorBalanceMath::colorBalanceTransform	(	float	value,
		float	lightness,
		float	shadows,
		float	midtones,
		float	highlights )

Definition at line 207 of file kis_color_balance_adjustment.cpp.

{
      static const float a = 0.25, b = 0.333, scale = 0.7;
 
      shadows *= CLAMP ((lightness - b) / -a + 0.5, 0, 1) * scale;
      midtones *= CLAMP ((lightness - b) /  a + 0.5, 0, 1) * CLAMP ((lightness + b - 1) / -a + 0.5, 0, 1) * scale;
      highlights *= CLAMP ((lightness + b - 1) /  a + 0.5, 0, 1) * scale;
 
      value += shadows;
      value += midtones;
      value += highlights;
      value = CLAMP (value, 0.0, 1.0);
 
      return value;
}

References CLAMP, and value().

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The documentation for this class was generated from the following files:

• plugins/color/colorspaceextensions/kis_color_balance_adjustment.h
• plugins/color/colorspaceextensions/kis_color_balance_adjustment.cpp