DcmQuantIdent Class Reference

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

List of all members.

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.
void	finishRow ()
	dummy method needed for API compatibility with DcmQuantFloydSteinberg
void	nextCol (long &col) const
	increases the column number
Private Attributes
unsigned long	columns
	number of columns in image

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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.

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Member Function Documentation

void DcmQuantIdent::nextCol

(

long &

col

)

const [inline]

increases the column number

Parameters:

col	column number

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