@expo/image-utils

Resize Image

This feature allows you to resize an image to specified dimensions. The code sample demonstrates how to read an image from the file system, resize it to 100x100 pixels, and save the resized image back to the file system.

const { resizeImage } = require('@expo/image-utils');
const fs = require('fs');

async function resize() {
  const imageBuffer = fs.readFileSync('path/to/image.jpg');
  const resizedImage = await resizeImage(imageBuffer, { width: 100, height: 100 });
  fs.writeFileSync('path/to/resized-image.jpg', resizedImage);
}
resize();

Compress Image

This feature allows you to compress an image to reduce its file size. The code sample demonstrates how to read an image from the file system, compress it with a quality setting of 0.8, and save the compressed image back to the file system.

const { compressImage } = require('@expo/image-utils');
const fs = require('fs');

async function compress() {
  const imageBuffer = fs.readFileSync('path/to/image.jpg');
  const compressedImage = await compressImage(imageBuffer, { quality: 0.8 });
  fs.writeFileSync('path/to/compressed-image.jpg', compressedImage);
}
compress();

Convert Image Format

This feature allows you to convert an image from one format to another. The code sample demonstrates how to read a JPEG image from the file system, convert it to PNG format, and save the converted image back to the file system.

const { convertImageFormat } = require('@expo/image-utils');
const fs = require('fs');

async function convert() {
  const imageBuffer = fs.readFileSync('path/to/image.jpg');
  const convertedImage = await convertImageFormat(imageBuffer, { format: 'png' });
  fs.writeFileSync('path/to/converted-image.png', convertedImage);
}
convert();