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image_qrcode

0.1.0
0.1.0

QR code encoding and decoding for the Image library, implemented as a NIF over the vendored nayuki/QR-Code-generator (encoder, MIT) and dlbeer/quirc (decoder, ISC) C libraries.

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CHANGELOG.md 

# Changelog



## Image.QRCode 0.1.0



This is the changelog for Image.QRCode version 0.1.0 released on April 28th, 2026.



### Initial release



* `Image.QRCode.encode/2` — encodes a string to a `Vix.Vips.Image.t/0` QR code

  with configurable error-correction level, version range, mask, scale and

  quiet-zone width.



* `Image.QRCode.decode/1` — decodes any QR codes in a `Vix.Vips.Image.t/0`,

  with implicit conversion of arbitrary colourspaces and band formats to

  single-band 8-bit grayscale.



* NIF binding implemented over the vendored

  [nayuki/QR-Code-generator](https://github.com/nayuki/QR-Code-generator)

  (encoder, MIT) and [dlbeer/quirc](https://github.com/dlbeer/quirc)

  (decoder, ISC) C libraries. Both encoder and decoder run on dirty CPU

  schedulers and are safe under concurrent invocation.



* Precompiled NIF artefacts published for Linux (gnu/musl × x86_64/aarch64/

  armv7), macOS (x86_64/arm64) and Windows (x86_64) via `cc_precompiler`.