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Open Source QR Code Library

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This project develops and distributes QR Code decode/encode library under GPL v2. The project goal is Utilize QR Code embeded information for programmable devices all over the world. QR Code is the industrial standard, JIS-X-0510 and ISO/IEC18004.

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LastUpdate:2012-05-23 11:43
Member:yanbe, aloknegi304, benjaminbellamy, drhu00, ln20001115 [View]
Other Info.

Latest File Releases of Open Source QR Code Library

PackageVersionDateNotes
/ Change Log
qrcode0.92007-12-04 23:24Document / Document

* Masayuki Miyazaki氏(m-miyazaki)によるリードソロモン符号デコーダの採用による,
 誤り訂正バグの解消
( http://sourceforge.jp/projects/reedsolomon )
- ver0.8まで読み取れなかった以下のようなデータに誤りを含むQRコードが読み取れる
 ようになった
  http://qrcode.sourceforge.jp/images/test_error2.png
  http://qrcode.sourceforge.jp/images/test_error3.png

 - RsDecode.decode()の戻り値によって,「誤りが訂正しきれなかったこと」を検出で
きるようになったため,これをベースにデコードを再試行するように変更

* 一度に複数の画像をデコード可能にするため,QRCodeDecoder.decode()を再入可能に
 した
* QRCodeDecoderCUIExampleが引数として複数の画像ファイルを受け付けるようにした
* QRCodeDecoderCUIExampleを実行したとき,標準エラー出力に簡単なパフォーマンス
 テストを出力するようにした
 - Pentium 4 3.4GHzのマシン,単一のスレッドで毎秒50枚程度のパフォーマンスでデ
  コード出来ることを確認

----------

* Reed-Solomon related bugs are fixed by using yet another Reed-Solomon decoder
 by Masayuki Miyazaki(m-miyazaki).
( http://sourceforge.jp/projects/reedsolomon )
 - Images like below are decodable now (they used to undecodable on ver0.8)
 http://qrcode.sourceforge.jp/images/test_error2.png
 http://qrcode.sourceforge.jp/images/test_error3.png

- By checking return value of RsDecode.decode(), we can detect "correction
  failure" precisely than before. Now decoder retries decoding based on its
  value.

* Make QRCodeDecoder.decode() reentrant for decoding multiple images

* QRCodeDecoderCUIExample recieves multiple images files

* QRCodeDecoderCUIExample does simple perfomance test to standard error output.
 - I confirmed that QRCodeDecoder can decode about 50 QR Code images per
  second on Pentium 4 3.4GHz machine.

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Last 3 reviews

Please, do you can do a .NET version? Thanks a lot

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Project Review by Anonymous - 2012-05-22 23:26

it's very usefull.

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Project Review by Anonymous - 2012-05-07 15:25

od dds

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Project Review by Anonymous - 2012-05-05 12:03

Latest Project News for Open Source QR Code Library

yanbe - 2008-11-08 02:16
1 Comment - yanbe - 2007-12-04 23:32
yanbe - 2007-09-01 19:54
yanbe - 2007-02-13 00:45
yanbe - 2006-10-15 06:08

Latest tickets for Open Source QR Code Library

Open DateSummaryOwner
2005-06-01 23:39Support connected Symbols

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