Emscripten port of zxing-cpp for decoding barcodes in browser. A live demo can be seen here
import Zxing from 'zxing'
const zxing = new Zxing
zxing.onReady = () => {
zxing.decode(image, width, height)
.then(results => console.log(results[0].code))
}constructor(options)
options is an object of:
| property | default | description |
|---|---|---|
| tryHarder | false | Spend more time to try to find a barcode; optimize for accuracy, not speed. |
| hybrid | true | See docs |
decode(ctx)
Decode from a CanvasRenderingContext2D. Returns a promise that resolves to an array of results
decode(image, width, height)
Decode from an image as a 1D array
onReady(fn)
Add a callback function fn to be executed when the decode becomes ready
isReady()
Returns if the decoder is ready
To build the asm.js module, make sure emcc is on your path then
git submodule init
git submodule update
./build.sh
npm install
npm run build