ColorImageQuantizerReduceColors Method (UnmanagedImage, Color)

Create an image with reduced number of colors using the specified palette.

Namespace: Accord.Imaging.ColorReduction
Assembly: Accord.Imaging (in Accord.Imaging.dll) Version: 3.8.0

Syntax

public Bitmap ReduceColors(
	UnmanagedImage image,
	Color[] palette
)

Public Function ReduceColors ( 
	image As UnmanagedImage,
	palette As Color()
) As Bitmap

Request Example View Source

Parameters

image: Type: Accord.ImagingUnmanagedImage
Source image to process.
palette: Type: System.DrawingColor
Target color palette. Must contatin 2-256 colors.

Return Value

Type: Bitmap
Returns image with reduced number of colors.

Exceptions

Exception	Condition
UnsupportedImageFormatException	Unsupported format of the source image - it must 24 or 32 bpp color image.
ArgumentException	Invalid size of the target color palette.

Remarks

The method creates an image, which looks similar to the specified image, but contains reduced number of colors. Is substitutes every pixel of the source image with the closest matching color in the specified paletter.

Note
The output image has 4 bpp or 8 bpp indexed pixel format depending on the target palette size - 4 bpp for palette size 16 or less; 8 bpp otherwise.

Reference

ColorImageQuantizer Class

ReduceColors Overload

Accord.Imaging.ColorReduction Namespace

ColorImageQuantizerAddLanguageSpecificTextSet("LST190388F0_0?cpp=::|nu=.");ReduceColors Method (UnmanagedImage, AddLanguageSpecificTextSet("LST190388F0_1?cpp=array&lt;");ColorAddLanguageSpecificTextSet("LST190388F0_2?cpp=&gt;|vb=()|nu=[]");)

Parameters

Return Value

Reference

ColorImageQuantizerReduceColors Method (UnmanagedImage, Color)