decodeMiddle Subclasses override this to decode the portion of a barcode between the start and end guard patterns. @param row row of black/white valu

encode encode contents string @return a byte array of horizontal pixels (false = white, true = black)

extractParameters Extracts the number of data layers and data blocks from the layer around the bull's eye. @param bullsEyeCorners the array of bull's

findMSBSet Return the position of the most significant bit set (to one) in the "value". The most significant bit is position 32. If there is no bit se

itfReader_findGuardPattern finds guard pattern @param row row of black/white values to search @param rowOffset position to start search @param p

onedWriter_checkNumeric returns IllegalArgumentException if input contains characters other than digits 0-9.

readCodewords Reads the bits in the BitMatrix representing the mapping matrix (No alignment patterns) in the correct order in order to reconstitute th

** * Creates a new object with the same type as this Binarizer implementation, but with pristine * state. This is needed because Binarizer impleme

DataBlocks_getDataBlocks When Data Matrix Codes use multiple data blocks, they actually interleave the bytes of each of them. That is, the first byte

Decode Locates and decodes a Data Matrix code in an image. @return a String representing the content encoded by the Data Matrix code @throws NotFound

Decode Decodes a Data Matrix Code represented as a {@link BitMatrix}. A 1 or "true" is taken to mean a black module. @param bits booleans representin

Decode : Locates and decodes a Data Matrix code in an image. @return a String representing the content encoded by the Data Matrix code @throws NotFou

Encode the contents following specified format. {@code width} and {@code height} are required size. This method may return bigger size {@code BitMatri

EncodeHighLevel Performs message encoding of a DataMatrix message using the algorithm described in annex P of ISO/IEC 16022:2000(E). @param msg t

MaskUtil_getDataMaskBit Return the mask bit for "getMaskPattern" at "x" and "y". See 8.8 of JISX0510:2004 for mask pattern conditions.

MatrixUtil_buildMatrix Build 2D matrix of QR Code from "dataBits" with "ecLevel", "version" and "getMaskPattern". On success, store the result in "mat

** Adapted from listings in ISO/IEC 24724 Appendix B and Appendix G. */

** * Returns a new object with rotated image data by 45 degrees counterclockwise. * Only callable if {@link #isRotateSupported()} is true. * *

SelectBestPatterns return the 3 best {@link FinderPattern}s from our list of candidates. The "best" are those have similar module size and form a shap

appendLengthInfo Append length info. On success, store the result in "bits".

For efficiency, returns -1 on failure. Not throwing here saved as many as 700 exceptions per image when using some of our blackbox images.

correctBits Performs RS error correction on an array of bits.</p> @return the corrected array @throws FormatException if the input contains too many

decodeBase256Segment See ISO 16022:2006, 5.2.9 and Annex B, B.2

detectSolid1 Detect a solid side which has minimum transition.

doDecode We're going to examine rows from the middle outward, searching alternately above and below the middle, and farther out each time. rowStep is

embedDataBits Embed "dataBits" using "getMaskPattern". On success, modify the matrix and return true. For debugging purposes, it skips masking process

extractPureBits This method detects a code in a "pure" image -- that is, pure monochrome image which contains only an unrotated, unskewed, image of a

getColor Gets the color of a segment @return 1 if segment more than 90% black, -1 if segment is more than 90% white, 0 else

interleaveWithECBytes Interleave "bits" with corresponding error correction bytes. On success, store the result in "result". The interleave rule is co