Changes for libdmtx
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version 0.7.2 [September 2009]
Added initial macro decoding support (thanks Marlon!)
Fast quad fill for dmtxDecodeMatrixRegion() (thanks Mackenzie!)
Fixed capacity bug with rectangle requests
New Vala wrapper (thanks Evan!)
Wrapper integration in build system (thanks Evan!)
Add libdmtx-X.X.X.zip as source package option
Add libdmtx-win32-X.X.X.zip as binary package option
Add "project" directory to EXTRA_DIST in Makefile.am
version 0.7.0 [March 2009]
New Java wrapper (thanks Pete and Dikran!)
New .NET wrapper (thanks Vali and Joe!)
Added solution and project files for MS Visual Studio 9.0
Reader support for FNC1 and upper shift (thanks Robin!)
Support for byte-padded rows through dmtxImageSetProp()
New no-copy image handling with configurable pixel packing
Moved image scaling factors to DmtxDecode
Moved scan cache from DmtxImage to DmtxDecode
Eliminate types DmtxRgb, DmtxColor3, and DmtxGradient
API updates for consistent naming and conventions
Added dmtxEncodeSetProp() and dmtxEncodeGetProp()
Option to print extended ASCII as UTF-8 (thanks Robin!)
Fixed diagnostic image output
Fixed misrepresented capacity in verbose mode
True vector SVG output bypassing ImageMagick (thanks Richard!)
Use ImageMagick to write images in major raster formats
Fixed several bugs and compiler warnings
version 0.6.0 [November 2008]
dmtxread now scans all major image formats [Olivier]
New encoding/decoding Ruby wrapper [Romain]
Reduced memory footprint
Will scan multiple barcodes per image
Various platform-specific improvements
Initial work preparing for custom pixel packing in future
Begin static analysis cleanup with splint
New --disable-dmtxread and --disable-dmtxwrite [Romain]
Ability to specify max/min expected barcode sizes
New edge neighbor tracking (Hough + 2 way edge cache)
Info cache to track scan progress and avoid rescanning pixels
Major reduction in floating point operations
New informative return codes (found, not found, error)
Read input from STDIN
Diagnostic images display trail left by scanning logic
Option to write output to STDOUT [Olivier]
PHP wrapper now compiles with recent libdmtx
Dedicated README.xxx instructions for specific platforms
version 0.5.2 [September 2008]
Move SetRangeLimit and SetScanRegion into library
Replace DMTXUTIL_SUCCESS/ERROR with DMTX_SUCCESS/FAILURE
Add edge threshold filtering
Add encoding support for 144x144 barcodes
Fixed encoding case when message starts with two digits
Fixed bug in range limit option
Add dynamic image shrinking (pixel skipping)
Add step-by-step diagnostic image dump (debug build)
Fixed bug in minimum scan gap setting
Removed y-flip from internal pixel storage
Added strict border tests to eliminate false positives
Added squareness deviation filter
Implement simplified Hough transform for locating first edge
Several behind-the-scenes performance enhancements
Python wrapper update; 15x faster (thanks Jonathan!)
New PHP wrapper code added
Various improvements when building for OS X and FreeBSD
version 0.5.1 [July 2008]
Fixed Extended ASCII encoding bug
Fixed error correction bug related to multiple interleaved blocks
Added timeout condition for region detection
Allow partial and complete disabling of error correction
Replaced DmtxPixel struct with DmtxRgb for safe pixel copies
Tighter integration with libfec
Conditional build logic for libtiff
Added placeholder for new utility, dmtxquery
Added unit test program for testing libdmtx internals
Include local copies of getopt1.c, getopt.c, and getopt.h
Various things to help compiling in MS VC++
Lots of holes filled in comments (Doxygen)
Fixed experimental Data Mosaic decoding
New Cocoa/iPhone wrapper (thanks Stefan!)
version 0.5 [April 2008]
Error correction using libfec (thanks Florian!)
Rework encoding and decoding API for consistency and intuitiveness
Handle region detection and region decoding as separate tasks
Pass found regions back to calling app before attempting decode
Image mask approach (for performance and multi-barcode scans)
Fix TestForEndOfSymbolEdifact() to handle special cases correctly
Roll scan pattern into core library (inward breadth-first cross)
Replace dmtxScanLine() with dmtxScanPixel()
Implement 4-direction weighted module decisions (eliminates thresholds)
Add ability to scan portion of image
Add --diagnose option that dumps image with embedded scan infomation
Added Z rotation angle (in degrees) to verbose output
Move ASCII and codeword output to separate --preview option
Added -R option for setting image print resolution in dpi (PNG only)
Remove gltest and simpletest from default build target
Update Subversion to be keyword friendly ($Id$)
Updated documentation to reflect API and option changes
version 0.4 [December 2007]
Remove arbitrary sz scaling (100.0) since it doesn't matter anyway
Fix 4 bottom-right modules in sizes where they are not used (thanks Matthias R.!)
Replace callback references with preprocessor macros
Implement remaining encodation schemes for encoding (X12, Base 256, etc...)
Implement remaining encodation schemes for decoding (X12, Base 256, etc...)
Implement --auto-best option for best possible encoding efficiency
Implement multi-region symbols
Read and write rectangle barcodes
Use GNU autotools (autoconf, automake, libtool)
New region detection overhaul
Include initial version of Python bindings from pydmtx project (thanks Dan!)
Add decoding functionality through Python
Add marathon images to project (thanks john@sportcam.net!)
Fix dmtxread crash when same barcode is found more than 16 times
Verbose messages describing traits of detected barcodes
--codewords option to print codewords instead of decoded message
--newline option to insert newline character at end of output
Additional output formats (PNG, ASCII, codewords)
'make test' executes regression tests for encodation
version 0.3 [October 2006]
Several high-level changes: build process, naming consistency, file layout
Added new automatic style checks in script directory ("make style")
Implemented remaining encodation schemes for decode (X12, Base 256, etc...)
Fixed instability/regressions that were introduced in v0.2 release
Color sampling now averaged from multiple pixel locations
Size calibration accuracy improved with new approach
dmtxread: increased default scanline count, added multi-page TIFF format
dmtxwrite: bug fixes, implemented -o option
Improved documentation: deps listed in INSTALL, new man page for dmtxwrite
version 0.2 [June 2006]
Cleaned up program structure surrounding decoding process
Improved API for real-world use (no longer just dumping results to STDOUT)
Added "dmtxread" command line utility
Added "dmtxwrite" command line utility
Implemented Reed-Solomon error detection
Created "simpletest.c" for full circle processing test
Now using libpng(3) in library to read Data Matrix images
Improved documentation (somewhat)
version 0.1 [April 2006]
Initial release
