Crate matrix_qrcode::qrcode

QRCode encoder

This crate provides a QR code and Micro QR code encoder for binary data.

use qrcode::QrCode;
use image::Luma;

// Encode some data into bits.
let code = QrCode::new(b"01234567").unwrap();

// Render the bits into an image.
let image = code.render::<Luma<u8>>().build();

// Save the image.
image.save("/tmp/qrcode.png").unwrap();

// You can also render it into a string.
let string = code.render()
    .light_color(' ')
    .dark_color('#')
    .build();
println!("{}", string);

Modules

bits

The bits module encodes binary data into raw bits used in a QR code.

canvas

The canvas module puts raw bits into the QR code canvas.

ec

The ec module applies the Reed-Solomon error correction codes.

optimize

Find the optimal data mode sequence to encode a piece of data.

render

Render a QR code into image.

types

Structs

QrCode

The encoded QR code symbol.

Enums

Color

The color of a module.

EcLevel

The error correction level. It allows the original information be recovered even if parts of the code is damaged.

Version

In QR code terminology, Version means the size of the generated image. Larger version means the size of code is larger, and therefore can carry more information.

Type Definitions

QrResult

QrResult is a convenient alias for a QR code generation result.