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## Application

### Interfaces, Classes, Traits and Enums

QRDataModeInterface
  Specifies the methods reqired for the data modules (Number, Alphanum, Byte and Kanji)
LuminanceSourceInterface
QROutputInterface
  Converts the data matrix into readable output
BitBuffer
  Holds the raw binary data
EccLevel
  This class encapsulates the four error correction levels defined by the QR code standard.
ECICharset
  ISO/IEC 18004:2000 - 8.4.1 Extended Channel Interpretation (ECI) Mode
GenericGFPoly
  Represents a polynomial whose coefficients are elements of a GF.
GF256
  This class contains utility methods for performing mathematical operations over the Galois Fields. Operations use a given primitive polynomial in calculations.
MaskPattern
  ISO/IEC 18004:2000 Section 8.8.1 ISO/IEC 18004:2000 Section 8.8.2 - Evaluation of masking results
Mode
  Data mode information - ISO 18004:2006, 6.4.1, Tables 2 and 3
ReedSolomonDecoder
  Implements Reed-Solomon decoding
ReedSolomonEncoder
  Reed-Solomon encoding - ISO/IEC 18004:2000 Section 8.5 ff
Version
  Version related tables and methods
AlphaNum
  Alphanumeric mode: 0 to 9, A to Z, space, $ % * + - . / :
Byte
  8-bit Byte mode, ISO-8859-1 or UTF-8
ECI
  Adds an ECI Designator
Hanzi
  Hanzi (simplified Chinese) mode, GBT18284-2000: 13-bit double-byte characters from the GB2312/GB18030 character set
Kanji
  Kanji mode: 13-bit double-byte characters from the Shift-JIS character set
Number
  Numeric mode: decimal digits 0 to 9
QRCodeDataException
  An exception container
QRData
  Processes the binary data and maps it on a QRMatrix which is then being returned
QRDataModeAbstract
  abstract methods for the several data modes
QRMatrix
  Holds an array representation of the final QR Code that contains numerical values for later output modifications; maps the ECC coded binary data and applies the mask pattern
Binarizer
  This class implements a local thresholding algorithm, which while slower than the GlobalHistogramBinarizer, is fairly efficient for what it does. It is designed for high frequency images of barcodes with black data on white backgrounds. For this application, it does a much better job than a global blackpoint with severe shadows and gradients.
BitMatrix
  Extended QRMatrix to map read data from the Binarizer
Decoder
  The main class which implements QR Code decoding -- as opposed to locating and extracting the QR Code from an image.
DecoderResult
  Encapsulates the result of decoding a matrix of bits. This typically applies to 2D barcode formats. For now, it contains the raw bytes obtained as well as a String interpretation of those bytes, if applicable.
GDLuminanceSource
  This class is used to help decode images from files which arrive as GD Resource It does not support rotation.
IMagickLuminanceSource
  This class is used to help decode images from files which arrive as Imagick Resource It does not support rotation.
LuminanceSourceAbstract
  The purpose of this class hierarchy is to abstract different bitmap implementations across platforms into a standard interface for requesting greyscale luminance values.
QRCodeDecoderException
  An exception container
AlignmentPattern
  Encapsulates an alignment pattern, which are the smaller square patterns found in all but the simplest QR Codes.
AlignmentPatternFinder
  This class attempts to find alignment patterns in a QR Code. Alignment patterns look like finder patterns but are smaller and appear at regular intervals throughout the image.
Detector
  Encapsulates logic that can detect a QR Code in an image, even if the QR Code is rotated or skewed, or partially obscured.
FinderPattern
  Encapsulates a finder pattern, which are the three square patterns found in the corners of QR Codes. It also encapsulates a count of similar finder patterns, as a convenience to the finder's bookkeeping.
FinderPatternFinder
  This class attempts to find finder patterns in a QR Code. Finder patterns are the square markers at three corners of a QR Code.
GridSampler
  Implementations of this class can, given locations of finder patterns for a QR code in an image, sample the right points in the image to reconstruct the QR code, accounting for perspective distortion. It is abstracted since it is relatively expensive and should be allowed to take advantage of platform-specific optimized implementations, like Sun's Java Advanced Imaging library, but which may not be available in other environments such as J2ME, and vice versa.
PerspectiveTransform
  This class implements a perspective transform in two dimensions. Given four source and four destination points, it will compute the transformation implied between them. The code is based directly upon section 3.4.2 of George Wolberg's "Digital Image Warping"; see pages 54-56.
QRCodeDetectorException
  An exception container
ResultPoint
  Encapsulates a point of interest in an image containing a barcode. Typically, this would be the location of a finder pattern or the corner of the barcode, for example.
QRCodeOutputException
  An exception container
QREps
  Encapsulated Postscript (EPS) output
QRFpdf
  QRFpdf output module (requires fpdf)
QRGdImage
  Converts the matrix into GD images, raw or base64 output (requires ext-gd)
QRImage
  Converts the matrix into GD images, raw or base64 output (requires ext-gd)
QRImagick
  ImageMagick output module (requires ext-imagick)
QRMarkup
  Abstract for markup types: HTML, SVG, ... XML anyone?
QRMarkupHTML
  HTML output
QRMarkupSVG
  SVG output
QROutputAbstract
  common output abstract
QRString
  Converts the matrix data into string types
QRCode
  Turns a text string into a Model 2 QR Code
QRCodeException
  An exception container
QROptions
  The QRCode settings container
BitBufferTest
  BitBuffer coverage test
EccLevelTest
  EccLevel coverage test
MaskPatternTest
ModeTest
  Mode coverage test
VersionTest
  Version coverage test
AlphaNumTest
  Tests the AlphaNum class
ByteTest
  Tests the Byte class
DataInterfaceTestAbstract
  The data interface test abstract
HanziTest
  Tests the Hanzi/GB2312 class
KanjiTest
  Tests the Kanji class
NumberTest
  Tests the Number class
QRDataTest
QRMatrixTest
  Tests the QRMatix class
QRFpdfTest
  Tests the QRFpdf output module
QRGdImageGIFTest
  Tests the QRGdImage output module
QRGdImageJPGTest
  Tests the QRGdImage output module
QRGdImagePNGTest
  Tests the QRGdImage output module
QRGdImageTestAbstract
  Tests the QRGdImage output module
QRImagickTest
  Tests the QRImagick output module
QRMarkupHTMLTest
  Tests the QRMarkup output module
QRMarkupSVGTest
  Tests the QRMarkup output module
QRMarkupTestAbstract
  Tests the QRMarkup output module
QROutputTestAbstract
  Test abstract for the several (built-in) output modules, should also be used to test custom output modules
QRStringJSONTest
  Tests the QRString output module
QRStringTestAbstract
  Tests the QRString output module
QRStringTEXTTest
  Tests the QRString output module
QRCodeReaderGDTest
  Tests the GD based reader
QRCodeReaderImagickTest
  Tests the Imagick based reader
QRCodeReaderTestAbstract
  Tests the QR Code reader
QRCodeTest
  Tests basic functions of the QRCode class
QROptionsTest
  QROptions test
QROptionsTrait
  The QRCode plug-in settings & setter functionality
QRMaxLengthTrait
  Trait QRMaxLengthTrait

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