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image-q

Image Quantization Library in **TypeScript** *(MIT Licensed)*

  • 4.0.0
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What is image-q?

image-q is an advanced image quantization library for Node.js and the browser. It provides various algorithms for color quantization and dithering, allowing you to reduce the number of colors in an image while maintaining visual quality.

What are image-q's main functionalities?

Color Quantization

This feature allows you to reduce the number of colors in an image using various quantization algorithms. The code sample demonstrates how to load an image, create a quantizer instance, and quantize the image.

const { ImageQuantizer, Palette } = require('image-q');
const fs = require('fs');

// Load an image (example uses a buffer from a file)
const imageBuffer = fs.readFileSync('path/to/image.png');

// Create a quantizer instance
const quantizer = new ImageQuantizer();

// Quantize the image
quantizer.quantize(imageBuffer).then((result) => {
  // Save the quantized image
  fs.writeFileSync('path/to/quantized_image.png', result);
});

Dithering

This feature allows you to apply dithering to an image, which helps to reduce color banding and improve visual quality. The code sample demonstrates how to load an image, create a ditherer instance, and apply dithering to the image.

const { ImageDitherer } = require('image-q');
const fs = require('fs');

// Load an image (example uses a buffer from a file)
const imageBuffer = fs.readFileSync('path/to/image.png');

// Create a ditherer instance
const ditherer = new ImageDitherer();

// Apply dithering to the image
const ditheredImage = ditherer.dither(imageBuffer);

// Save the dithered image
fs.writeFileSync('path/to/dithered_image.png', ditheredImage);

Palette Extraction

This feature allows you to extract the color palette from an image. The code sample demonstrates how to load an image, create a palette instance, and extract the palette colors from the image.

const { Palette } = require('image-q');
const fs = require('fs');

// Load an image (example uses a buffer from a file)
const imageBuffer = fs.readFileSync('path/to/image.png');

// Create a palette instance
const palette = new Palette();

// Extract the palette from the image
palette.buildPalette(imageBuffer).then((paletteColors) => {
  console.log('Extracted Palette:', paletteColors);
});

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Package last updated on 08 Jan 2022

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