Struct bardecoder::util::qr::QRData

pub struct QRData {
    pub data: Vec<u8>,
    pub version: u32,
    pub side: u32,
}

QR Data extracted from the source image

While the data is still pixels of value 0/255, using the index will convert it into 1's (pixel 0) and 0's (pixel 255)

Example

use bardecoder::util::qr::QRData;

let mut data = vec![0; 21 * 21];
data[21 * 21 - 1] = 255;
let qr_data = QRData::new(data, 1);

assert_eq!(qr_data.version, 1);
assert_eq!(qr_data.side, 21);
assert_eq!(qr_data[[0, 0]], 1);
assert_eq!(qr_data[[20, 20]], 0);

Fields

data: Vec<u8>

QR Pixel Data in side x side pixels, stored in row major order. Using the provided index will convert into 1's and 0's.

version: u32

Version of the QR Code, 1 being the smallest, 40 the largest

side: u32

Side in pixels of the QR square

Methods

impl QRData

pub fn new(data: Vec<u8>, version: u32) -> QRData

Create a new QRData object with the provided data and version. side will be calculated automatically.

Trait Implementations

impl Debug for QRData

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Decode<QRData, QRError> for QRDecoder

fn decode(&self, data: Result<QRData, QRError>) -> Result<String, QRError>

Does the actual decoding

impl Extract<ImageBuffer<Luma<u8>, Vec<u8>>, QRLocation, QRData, QRError> for QRExtractor

fn extract(
    &self,
    prepared: &GrayImage,
    loc: QRLocation
) -> Result<QRData, QRError>

Does the actual extracting

impl Index<[u32; 2]> for QRData

type Output = u8

The returned type after indexing.

fn index(&self, index: [u32; 2]) -> &u8

Performs the indexing (container[index]) operation.