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.

Fields

MaxColors

The maximum color count for the quantize.

Declaration

public const int MaxColors = 256

Field Value

Type	Description
int

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