JuicyPixels-3.1.5.1: Picture loading/serialization (in png, jpeg, bitmap, gif, tiff and radiance)

Safe HaskellNone

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

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 :: PaletteOptionsSource

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