heic-decode

Decode HEIC images to extract raw pixel data. Works in NEXTJS

Usage

npm install heic-decode-esm

1import convertHeic from "heic-decode-esm";
2
3const data = await convertHeic.one({
4  buffer: await fs.readFile("in.heic"),
5});
6
7console.log({
8  width: data.width,
9  height: data.height,
10  buffer: data.buffer,
11});
12
13await fs.writeFile("out.png", data.buffer);
14

When the images are decoded, the return value is a plain object in the format of ImageData. You can use this object to integrate with other imaging libraries for processing.

Note that while the decoder returns a Promise, it does the majority of the work synchronously, so you should consider using a worker thread in order to not block the main thread in highly concurrent production environments.

Dependencies

• libheif-wasm of libheif-js
• libheif

Related

• heic-cli - convert heic/heif images to jpeg or png from the command line
• heic-convert - convert heic/heif images to jpeg and png
• libheif-js - libheif as a pure-javascript npm module