Class WuAlphaColorQuantizer

A Wu's color quantizer with alpha channel.

Inheritance

object

WuAlphaColorQuantizer

Implements

IColorQuantizer

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: JeremyAnsel.ColorQuant

Assembly: JeremyAnsel.ColorQuant.dll

Syntax

public sealed class WuAlphaColorQuantizer : IColorQuantizer

Remarks

Based on C Implementation of Xiaolin Wu's Color Quantizer (v. 2) (see Graphics Gems volume II, pages 126-133) (http://www.ece.mcmaster.ca/~xwu/cq.c).

Algorithm: Greedy orthogonal bipartition of RGB space for variance minimization aided by inclusion-exclusion tricks. For speed no nearest neighbor search is done. Slightly better performance can be expected by more sophisticated but more expensive versions.

Methods

Quantize(byte[])

Quantizes an image.

Declaration

public ColorQuantizerResult Quantize(byte[] image)

Parameters

Type	Name	Description
byte[]	image	The image (ARGB).

Returns

Type	Description
ColorQuantizerResult	The result.

Quantize(byte[], int)

Quantizes an image.

Declaration

public ColorQuantizerResult Quantize(byte[] image, int colorCount)

Parameters

Type	Name	Description
byte[]	image	The image (ARGB).
int	colorCount	The color count.

Returns

Type	Description
ColorQuantizerResult	The result.

Implements

IColorQuantizer