DcmQuantIdent Class Reference

pseudo error diffusion class implementing an identity transformation. More...

Public Member Functions
	DcmQuantIdent (unsigned long cols)
	constructor
	~DcmQuantIdent ()
	destructor
void	adjust (DcmQuantPixel &, long, long)
	dummy method needed for API compatibility with DcmQuantFloydSteinberg
void	propagate (const DcmQuantPixel &, const DcmQuantPixel &, long)
	dummy method needed for API compatibility with DcmQuantFloydSteinberg
void	startRow (long &col, long &limitcol)
	starts a new row. More...
void	finishRow ()
	dummy method needed for API compatibility with DcmQuantFloydSteinberg
void	nextCol (long &col) const
	increases the column number More...

Private Attributes
unsigned long	columns
	number of columns in image

Detailed Description

pseudo error diffusion class implementing an identity transformation.

This class implements a public API mostly identical to that of class DcmQuantFloydSteinberg. Since several methods of the error diffusion class are called for each single image pixel during conversion of a color image to palette color, we do not use virtual methods and a common abstract base class here. Instead we implement all methods inline, and use a template to select the appropriate class at compile time. With a decent optimizer this reduces the overhead for using this class to zero.

Member Function Documentation

nextCol()

void DcmQuantIdent::nextCol ( long &  col ) const

inline

increases the column number

Parameters

col	column number

startRow()

void DcmQuantIdent::startRow ( long &  col, long &  limitcol  )

inline

starts a new row.

The initial and last column of the current row are determined.

Parameters

col	initial column for the current row returned in this parameter
limitcol	limit column (one past the last valid column) for the current row returned in this parameter.

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

• dcmimage/include/dcmtk/dcmimage/diqtid.h