Find and read QR-Codes
This crates exports functions and types that can be used to search for QR-Codes in images and decode them.
The most basic usage is shown below:
use image; // Load on image to search, convert it to grayscale let img = image::open("tests/data/github.gif")?.to_luma(); // Prepare for detection let mut img = rqrr::PreparedImage::prepare(img); // Search for grids, without decoding let grids = img.detect_grids(); assert_eq!(grids.len(), 1); // Decode the grid let (meta, content) = grids.decode()?; assert_eq!(meta.ecc_level, 0); assert_eq!(content, "https://github.com/WanzenBug/rqrr");
If you have some other form of picture storage, you can use
This allows you define your own source for images.
Wrapper around any grid that can be interpreted as a QR code
MetaData for a QR grid
A simple point in (some) space
An black-and-white image that can be mutated on search for QR codes
A basic GridImage that can be generated from a given function.
Version of a QR Code which determines its size
Possible errors that can happen during decoding
A grid that contains exactly one QR code square.