rxing - cRustacean Crossing

This is a port of the ZXing (https://github.com/zxing/zxing) java barcode library to pure rust. Conversion was done by hand. Original license resides with the authors of zxing.

Porting of the testing library is incomplete. Currently all positive tests are implemented. Negative verfication tests are not implemented.

Porting was done with the rust language in mind, though some parts may resemble java more directly than a proper clean-sheet rust implementation. The process of "rustifying" the code is ongoing.

CLI

If you're looking for a CLI interface into the library, please see rxing-cli.

WASM

If you're looking for a WASM version of this library, check out rxing-wasm, or on NPM.

Status

All barcode formats are tested and functioning in their current state against current tests.

Symbology	Status
aztec	complete
datamatrix	complete
maxicode	complete
pdf417	complete
qrcode	complete
coda	complete
code 39	complete
code 93	complete
code 128	complete
itf	complete
ean 8	complete
ean 13	complete
upc a	complete
upc e	complete

Incomplete

The library has only been thurougly tested with the BufferedImageLuminanceSource source format. Using any other source is currently experimental and may result in unexpected or undefined outputs. This means that the feature flag used to enable the use of the image crate is currently on by default. Turning it off may result in unexpected results.

Example with helpers

use rxing;

fn main() {
    let file_name = "test_image.jpg";

    let results = rxing::helpers::detect_multiple_in_file(file_name).expect("decodes");

    for result in results {
        println!("{} -> {}", result.getBarcodeFormat(), result.getText())
    }
}

Latest Release Notes

• v0.2.20 -> Adds rudimentary support for MaxiCode detection. The detector works best on unrotated images on a flat plane. Very basic support for rotation correction is gated behind the experimental_features flag, but it is not ready for most use cases. The MaxiCode detector is gated behind the TryHarder decoder hint, by default rxing uses the old PureBarcode implementation.

• v0.2.19 -> The datamatrix detector for the c++ version of zxing zxing-cpp has been ported. This features a dramatically different method of detecting datamatrix symbols. If you want to fallback to the original version, include the decode hint TRY_HARDER.

• v0.2.15 -> Support for reading and writing svg files through the feature flags svg_read and svg_write.

  These flags are off by default.

• v0.2.14 -> Support for more image output formats, many rustification changes to the codebase.

  If you were using very deep, specific functions in the encoder/decoder sections this may require a function rename. For instance qrcode::encoder::encoder is now qrcode::encoder::qrcode_encoder.

• v0.2.10 -> Fix major issue with qrcode generation.

• v0.2.9 -> Major fix, codabar was not being encoded by multiformat writer.

• v0.2.6 -> Fix missing result point callback for rss14

• v0.2.4 -> Add helper functions for common cases (read a file, use raw luma8 data).

• v0.2.3 -> Implement most suggestions from clippy, as well as some simple changes, no surface changes.

• v0.2.0 -> Dramatically improve performance when cropping a BufferedImageLuminanceSource.

• v0.1.4 -> Dramatically improve performance for MultiFormatReader and for multiple barcode detection.

Known Issues

• Performance is low for GenericMultipleBarcodeReader.
• Datamatrix codes are sometimes not correctly decoded, especially when they are actually pure barcodes. This appears to be an issue with zxing 3.5.1 as well.

ZXing Track

Currently tracking zxing 3.5.1

Copyright notes

The original license remains with the zxing developers. The license for the ported components of the c++ port remain with the developers of that port, where applicable.