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quantize

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A node.js module for color quantization, based on Leptonica.

Package Exports

  • quantize

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (quantize) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

quantize

Node.js module for color quantization, based on Leptonica.

Install

npm install quantize

Quick Overview

###Usage

var quantize = require('quantize');

var arrayOfPixels = [[190,197,190], [202,204,200], [207,214,210], [211,214,211], [205,207,207]];
var maximumColorCount = 4;

var colorMap = quantize(arrayOfPixels, maximumColorCount);
  • arrayOfPixels - An array of pixels (represented as [R,G,B arrays]) to quantize
  • maxiumColorCount - The maximum number of colours allowed in the reduced palette

#####Reduced Palette

The .palette() method returns an array that contains the reduced color palette.

// Returns the reduced palette
colorMap.palette(); 
// [[204, 204, 204], [208,212,212], [188,196,188], [212,204,196]]

#####Reduced pixel

The .map(pixel) method maps an individual pixel to the reduced color palette.

// Returns the reduced pixel
colorMap.map(arrayOfPixels[0]);
// [188,196,188]

Author

Contributors

License

Licensed under the MIT License.