IlvQuickQuantizer Class Reference

332 fixed colormap quantizer class. More...

#include <ilviews/bitmaps/qckquant.h>

Inheritance diagram for IlvQuickQuantizer:

List of all members.

Public Member Functions
	IlvQuickQuantizer ()
	Constructor. The constructor creates the colormap.
IlvIndexedBitmapData *	remap (const IlvBitmapData *data, const IlvColorMap *cmap, IlBoolean dither=((IlBoolean) 1))
	Converts true colors to the indexed colors. This method is derived because the remapping can be done quickly using simple bit shifts instead of using the general but slow IlvQuantizer::remap() method.

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Detailed Description

332 fixed colormap quantizer class.

Library: display

This class provides methods to convert true color images to indexed images using a fixed colormap. (The colormap is not computed from the source image). The colormap is computed using 3 bits for red and green and 2 bits for blue.

See also:

IlvFixedQuantizer, IlvQuantizer, IlvWUQuantizer, IlvNetscapeQuantizer

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Member Function Documentation

IlvIndexedBitmapData* IlvQuickQuantizer::remap	(	const IlvBitmapData *	data,
		const IlvColorMap *	cmap,
		IlBoolean	dither = ((IlBoolean) 1)
	)			[virtual]

Converts true colors to the indexed colors. This method is derived because the remapping can be done quickly using simple bit shifts instead of using the general but slow IlvQuantizer::remap() method.

Parameters:

	data	The original true color bitmap data.
	cmap	The colormap to remap the bitmap data to.
	dither	An IlBoolean value to indicate whether or no to use Floyd-Steinberg error diffusion.

Returns:

The computed indexed bitmap data.

Reimplemented from IlvQuantizer.