ossimHsiVector Class Reference

#include <ossimHsiVector.h>

Public Member Functions
	ossimHsiVector (ossim_float64 h=0, ossim_float64 s=0, ossim_float64 i=0)
	ossimHsiVector (const ossimRgbVector &rgb)
	ossimHsiVector (const ossimNormRgbVector &rgb)
ossimHsiVector &	operator= (const ossimRgbVector &rgb)
ossimHsiVector &	operator= (const ossimNormRgbVector &rgb)
void	setFromRgb (ossim_float64 r, ossim_float64 g, ossim_float64 b)
ossim_float64	getH () const
ossim_float64	getS () const
ossim_float64	getI () const
void	setH (ossim_float64 H)
void	setS (ossim_float64 S)
void	setI (ossim_float64 I)
ossim_float64	clamp (ossim_float64 colorValue, ossim_float64 min=0, ossim_float64 max=1) const

Protected Attributes
ossim_float64	theBuf [3]

Friends
std::ostream &	operator<< (std::ostream &out, const ossimHsiVector &data)

Detailed Description

Definition at line 18 of file ossimHsiVector.h.

Constructor & Destructor Documentation

ossimHsiVector() [1/3]

ossimHsiVector::ossimHsiVector ( ossim_float64  h = 0, ossim_float64  s = 0, ossim_float64  i = 0  )

inline

Definition at line 32 of file ossimHsiVector.h.

   {
      theBuf[0] = h;
      theBuf[1] = s;
      theBuf[2] = i;
   }

ossimHsiVector() [2/3]

ossimHsiVector::ossimHsiVector

(

const ossimRgbVector &

rgb

)

Definition at line 24 of file ossimHsiVector.cpp.

References ossimRgbVector::getB(), ossimRgbVector::getG(), ossimRgbVector::getR(), and setFromRgb().

{
   setFromRgb(rgb.getR()/255.0, rgb.getG()/255.0, rgb.getB()/255.0);
}

ossimHsiVector() [3/3]

ossimHsiVector::ossimHsiVector

(

const ossimNormRgbVector &

rgb

)

Definition at line 29 of file ossimHsiVector.cpp.

References ossimNormRgbVector::getB(), ossimNormRgbVector::getG(), ossimNormRgbVector::getR(), and setFromRgb().

{
   setFromRgb(rgb.getR(), rgb.getG(), rgb.getB());
}

Member Function Documentation

clamp()

ossim_float64 ossimHsiVector::clamp ( ossim_float64  colorValue, ossim_float64  min = 0, ossim_float64  max = 1  ) const

inline

Definition at line 53 of file ossimHsiVector.h.

References max, and min.

      {
         colorValue = colorValue > max? max:colorValue;
         colorValue = colorValue < min? min:colorValue;
         
         return colorValue;
      }

getH()

ossim_float64 ossimHsiVector::getH ( ) const

inline

Definition at line 46 of file ossimHsiVector.h.

Referenced by ossimRgbToHsiSource::getTile(), ossimHsiRemapper::getTile(), ossimNormRgbVector::operator=(), ossimRgbVector::operator=(), and ossimRgbVector::ossimRgbVector().

{ return theBuf[0]; }

getI()

ossim_float64 ossimHsiVector::getI ( ) const

inline

Definition at line 48 of file ossimHsiVector.h.

Referenced by ossimBrightnessMatch::computeInputBrightness(), ossimRgbToHsiSource::getTile(), ossimHsiRemapper::getTile(), ossimNormRgbVector::operator=(), ossimRgbVector::operator=(), ossimRgbVector::ossimRgbVector(), and ossimBrightnessContrastSource::processRgbTile().

{ return theBuf[2]; }

getS()

ossim_float64 ossimHsiVector::getS ( ) const

inline

Definition at line 47 of file ossimHsiVector.h.

Referenced by ossimRgbToHsiSource::getTile(), ossimHsiRemapper::getTile(), ossimNormRgbVector::operator=(), ossimRgbVector::operator=(), and ossimRgbVector::ossimRgbVector().

{ return theBuf[1]; }

operator=() [1/2]

ossimHsiVector & ossimHsiVector::operator=

(

const ossimRgbVector &

rgb

)

Definition at line 34 of file ossimHsiVector.cpp.

References ossimRgbVector::getB(), ossimRgbVector::getG(), ossimRgbVector::getR(), and setFromRgb().

{
   setFromRgb(rgb.getR()/255.0, rgb.getG()/255.0, rgb.getB()/255.0);
   
   return *this;
   
}

operator=() [2/2]

ossimHsiVector & ossimHsiVector::operator=

(

const ossimNormRgbVector &

rgb

)

Definition at line 42 of file ossimHsiVector.cpp.

References ossimNormRgbVector::getB(), ossimNormRgbVector::getG(), ossimNormRgbVector::getR(), and setFromRgb().

{
   setFromRgb(rgb.getR(), rgb.getG(), rgb.getB());
   
   return *this;
   
}

setFromRgb()

void ossimHsiVector::setFromRgb	(	ossim_float64	r,
		ossim_float64	g,
		ossim_float64	b
	)

Definition at line 50 of file ossimHsiVector.cpp.

References DEG_PER_RAD, FLT_EPSILON, MIN, setH(), setI(), setS(), and theBuf.

Referenced by operator=(), and ossimHsiVector().

{
   ossim_float64 sum = r + g + b;
   
   theBuf[2] =  sum/3;

   if(theBuf[2] > FLT_EPSILON)
   {
      double deltaI1I2 = r - g;
      double root = deltaI1I2*deltaI1I2 +
                    ((r-b)*(g-b));

      // compute Saturation from RGB
      theBuf[1] = 1 - (3.0/sum)*(MIN(MIN(r,g),b));
      
      // compte Hue from Rgb.
      if(root >= FLT_EPSILON)
      {
         theBuf[0] = acos((.5*((r-g)+(r-b)))/
                          sqrt(root))*DEG_PER_RAD;

         if(b > g)
         {
            theBuf[0] = 360 - theBuf[0];
         }
      }
      else
      {
         theBuf[0] = b;
      }
   }
   else
   {
      theBuf[0] = 0;
      theBuf[1] = 0;
      theBuf[2] = 0;
   }

   setH(theBuf[0]);
   setS(theBuf[1]);
   setI(theBuf[2]);
}

setH()

void ossimHsiVector::setH ( ossim_float64  H )

inline

Definition at line 49 of file ossimHsiVector.h.

Referenced by ossimHsiRemapper::getTile(), and setFromRgb().

{ theBuf[0] = H; }

setI()

void ossimHsiVector::setI ( ossim_float64  I )

inline

Definition at line 51 of file ossimHsiVector.h.

Referenced by ossimHsiRemapper::getTile(), ossimBrightnessContrastSource::processRgbTile(), and setFromRgb().

{ theBuf[2] = I; }

setS()

void ossimHsiVector::setS ( ossim_float64  S )

inline

Definition at line 50 of file ossimHsiVector.h.

Referenced by ossimHsiRemapper::getTile(), and setFromRgb().

{ theBuf[1] = S; }

Friends And Related Function Documentation

operator<<

std::ostream& operator<< ( std::ostream &  out, const ossimHsiVector &  data  )

friend

Definition at line 21 of file ossimHsiVector.h.

   {
      out << "<" << data.theBuf[0] << ", "
          << data.theBuf[1] << ", "
          << data.theBuf[2] << ">";
      
      return out;
   }

Member Data Documentation

theBuf

ossim_float64 ossimHsiVector::theBuf[3]

protected

buf[0] = hue buf[1] = saturation buf[2] = intensity

Definition at line 67 of file ossimHsiVector.h.

Referenced by setFromRgb().

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

• ossimHsiVector.h
• ossimHsiVector.cpp