Safe Haskell	None
Language	Haskell2010

Codec.Picture.ColorQuant

Description

This module provide some color quantisation algorithm in order to help in the creation of paletted images. The most important function is palettize which will make everything to create a nice color indexed image with its palette.

Synopsis

palettize :: PaletteOptions -> Image PixelRGB8 -> (Image Pixel8, Palette)
defaultPaletteOptions :: PaletteOptions
data PaletteCreationMethod
- = MedianMeanCut
- | Uniform
data PaletteOptions = PaletteOptions {
}

Documentation

palettize :: PaletteOptions -> Image PixelRGB8 -> (Image Pixel8, Palette) Source #

Reduces an image to a color palette according to PaletteOpts and returns the indices image along with its Palette.

defaultPaletteOptions :: PaletteOptions Source #

Default palette option, which aim at the best quality and maximum possible colors (256)

data PaletteCreationMethod Source #

Define which palette creation method is used.

Constructors

MedianMeanCut	MedianMeanCut method, provide the best results (visualy) at the cost of increased calculations.
Uniform	Very fast algorithm (one pass), doesn't provide good looking results.

data PaletteOptions Source #

To specify how the palette will be created.

Constructors

PaletteOptions
Fields paletteCreationMethod :: PaletteCreationMethod Algorithm used to find the palette enableImageDithering :: Bool Do we want to apply the dithering to the image. Enabling it often reduce compression ratio but enhance the perceived quality of the final image. paletteColorCount :: Int Maximum number of color we want in the palette