palette-simple

generate reduced color palette versions of an image

uses skmeans clusters

Installation

npm i palette-simple

Usage

var imgPalette = require('palette-simple').imgPalette;
var img = require('image-sync').read('./cat.png');

var numberOfColors = 8;

//imgPalette(data, numberOfColors, skipBuildImage=false) //data is flat uint8 array [r,g,b,a,r,g,b,a ... ]
var dataPalettized = imgPalette(img.data, numberOfColors); //returns {palette, data}

var theColorPalette = dataPalettized.palette;
console.log(theColorPalette);

// palette with 8 colors 
// [
//     [ 158, 130, 122 ],
//     [ 97, 71, 65 ],
//     [ 200, 175, 165 ],
//     ...
// ]

img.data = dataPalettized.data;
img.saveAs('./cat2.png');

2 colors

4 colors

8 colors

16 colors

32 colors

original

See Also

• get-rgba-palette
• image-palette
• palette