ColorFilterStrategyIntensity Class Reference

Leaf class for intensity strategy for ColorFilter. More...

#include <ColorFilterStrategyIntensity.h>

Inheritance diagram for ColorFilterStrategyIntensity:

Collaboration diagram for ColorFilterStrategyIntensity:

Public Member Functions
	ColorFilterStrategyIntensity ()
	Single constructor. More...
virtual	~ColorFilterStrategyIntensity ()
virtual double	pixelToZeroToOne (const QColor &pixel, QRgb rgbBackground) const
	Return a normalized value of 0 to 1 given input pixel. More...
virtual int	zeroToOneToValue (double s) const
	Return the low value normalized to 0 to 1. More...
Public Member Functions inherited from ColorFilterStrategyAbstractBase
	ColorFilterStrategyAbstractBase ()
	Single constructor. More...
virtual	~ColorFilterStrategyAbstractBase ()

Detailed Description

Leaf class for intensity strategy for ColorFilter.

Definition at line 13 of file ColorFilterStrategyIntensity.h.

Constructor & Destructor Documentation

ColorFilterStrategyIntensity()

ColorFilterStrategyIntensity::ColorFilterStrategyIntensity

(

)

Single constructor.

Definition at line 12 of file ColorFilterStrategyIntensity.cpp.

{
}

~ColorFilterStrategyIntensity()

ColorFilterStrategyIntensity::~ColorFilterStrategyIntensity ( )

virtual

Definition at line 16 of file ColorFilterStrategyIntensity.cpp.

{
}

Member Function Documentation

pixelToZeroToOne()

double ColorFilterStrategyIntensity::pixelToZeroToOne ( const QColor &  pixel, QRgb  rgbBackground  ) const

virtual

Return a normalized value of 0 to 1 given input pixel.

Implements ColorFilterStrategyAbstractBase.

Definition at line 20 of file ColorFilterStrategyIntensity.cpp.

{
  double distance = qSqrt (pow (double (pixel.red())  , 2) +
                           pow (double (pixel.green()), 2) +
                           pow (double (pixel.blue()) , 2));
  return distance / qSqrt (255.0 * 255.0 + 255.0 * 255.0 + 255.0 * 255.0);
}

zeroToOneToValue()

int ColorFilterStrategyIntensity::zeroToOneToValue ( double  s ) const

virtual

Return the low value normalized to 0 to 1.

Implements ColorFilterStrategyAbstractBase.

Definition at line 29 of file ColorFilterStrategyIntensity.cpp.

{
  return qFloor (INTENSITY_MIN + s * (INTENSITY_MAX - INTENSITY_MIN));
}

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

• Color/ColorFilterStrategyIntensity.h
• Color/ColorFilterStrategyIntensity.cpp