image-palette  

Extract palette from pixels array, return pixels mapped to palette. Useful for organizing palette-based encoding, like GIF, or various limited colors renderers, like gl-scatter2d.

Inspired by get-rgba-palette.

Usage


``javascript
var palette = require('image-palette')
var pixels = require('image-pixels')

var {ids, colors} = palette(await pixels('./image.png'))
`

API

$3

Extract palette from the input pixels array with rgba pixels sequence, whether flat or nested.

* colors is a list of extracted colors [[r, g, b, a], [r, g, b, a], ...].
* ids is an array of input pixels mapped to extracted colors.
* amount is an array with amounts corresponding to the extracted colors, from 0..1 range.
* count` is max number of colors to extract.

Related

* image-pixels − load pixels data from any image source.
* image-save − save image/pixel data to a file, canvas or array.
* image-equal − test if two images are equal, based on fuzzy comparison.

License

© 2018 Dmitry Yv. MIT License.