BarCodeConfidence Class Reference

Public Attributes
const	NONE = 0
const	MODERATE = 80
const	STRONG = 100

Detailed Description

Contains recognition confidence level

This sample shows how BarCodeConfidence changed, depending on barcode type

Moderate confidence

$generator = new BarcodeGenerator(EncodeTypes::CODE_128, "12345");
$generator->save("test.png");
$reader = new BarCodeReader("test.png", null, array(DecodeType::CODE_39, DecodeType::CODE_128));
foreach($reader->readBarCodes() as $result)
{
   print("BarCode Type: ".$result->getCodeTypeName());
   print("BarCode CodeText: ".$result->getCodeText());
   print("BarCode Confidence: ".$result->getConfidence());
   print("BarCode ReadingQuality: ".$result->getReadingQuality());
}

Strong confidence

$generator = new BarcodeGenerator(EncodeTypes::QR, "12345");
$generator->save("test.png");
$reader = new BarCodeReader("test.png", null, array(DecodeType::CODE_39, DecodeType::QR));
foreach($reader->readBarCodes() as $result)
{
    print("BarCode Type: ".$result->getCodeTypeName());
    print("BarCode CodeText: ".$result->getCodeText());
    print("BarCode Confidence: ".$result->getConfidence());
    print("BarCode ReadingQuality: ".$result->getReadingQuality());
}

Member Data Documentation

MODERATE

const BarCodeConfidence::MODERATE = 80

Recognition confidence of barcode (mostly 1D barcodes) with weak checksumm or even without it. Could contains some misrecognitions in codetext or even fake recognitions if is low

See also

BarCodeResult.ReadingQuality

NONE

const BarCodeConfidence::NONE = 0

Recognition confidence of barcode where codetext was not recognized correctly or barcode was detected as posible fake

STRONG

const BarCodeConfidence::STRONG = 100

Recognition confidence which was confirmed with BCH codes like Reed–Solomon. There must not be errors in read codetext or fake recognitions