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Credits and Changelog

Credits

Ullrich Köthe originated and wrote the library.

Mikhail Amchislavsky (mamchisl@ucdavis.edu) contributed code to read and write PNM files.

Hans Meine (hans_meine@gmx.net) contributed interface code for the FFTW Fourier transform library, the ImageArray class and the Gabor filter code. He also collaborated in the implementation of many other modules and contributed various improvements.

Gunnar Kedenburg (gunnar@haquebright.de) completely rewrote the image import/export library and implemented much of the vigra::MultiArray functionality.

Yevgen Reznichenko (rezniche@kogs.informatik.uni-hamburg.de) added a number of image processing algorithms.

Christian Dennis Rahn (rahn@informatik.uni-hamburg.de) implemented much of the Convolution filters for multi-dimensional arrays..

Kasim Terzic, Florian Heinrich and Benjamin Seppke implemented image analysis functionality for 3- and higher-dimensional data.

Pablo d'Angelo, Douglas Wilkins, Lukas Jirkovsky and other members of the Hugin team contributed various extensions of the impex library (UINT16/UINT32 support, ICC profile support, HDR and OpenEXR file types).

Rahul Nair implemented the vigra::RandomForest classifier and VIGRA Matlab bindings.

Michael Hanselmann and Martin Lindner implemented much of the HDF5 support. Michael Hanselmann also contributed his pLSA (probabilistic latent semantic analysis) implementation.

Nathan Huesken and Christoph Sommer helped a lot in developing vigranumpy, the VIGRA Python bindings.

Jens-Malte Gottfried contributed to the cmake-based build system.

Joachim Schleicher implemented a reader for the SIF file format.

Oliver Gathmann and Michael Held implemented support for the multi-page TIFF format.

Christoph Spiel contributed I/O functions for images with transparency (alpha channel) and other improvements to the impex library.

Numerous people reported bugs and made suggestions.

Many thanks to all!

Changes from Version 1.8.0 to 1.9.0

Changes from Version 1.7.1 to 1.8.0

Changes from Version 1.7.0 to 1.7.1

Changes from Version 1.6.0 to 1.7.0

Changes from Version 1.5.0 to 1.6.0

Changes from Version 1.4.0 to 1.5.0

Changes from Version 1.3.3 to 1.4.0

Changes from Version 1.3.2 to 1.3.3

Changes from Version 1.3.1 to 1.3.2

Changes from Version 1.3.0 to 1.3.1

Changes from Version 1.2.0 to 1.3.0

Added algorithms for Multi-Dimensional Arrays and Iterators : Point operators for multi-dimensional arrays. and Convolution filters for multi-dimensional arrays. and the navigator utility.

Extended convolveImage() (non-separable convolution) to support all border treatment modes.

Added vigra::Rational

Added vigra::Polynomial and polynomialRoots().

Added more mathematical functions and functors.

Added vigra::SplineImageView.

Added tensor image processing and analysis

Added 2nd order recursiveFilterX() and recursiveFilterY()

Added Resampling Convolution Filters and reimplemented resizeImageSplineInterpolation() in terms of them.

Added multiarray to image wrappers.

Added image mirroring and rotation.

Added fftw3.hxx to support FFTW version 3 (unfortunately, this is incompatible to FFTW 2, which is still supported in fftw.hxx but should no longer be used within VIGRA).

Added vigra::ArrayVector as a std::vector alternative whose memory is guaranteed to be one contiguous piece and whose iterator is guaranteed to be a value_type *.

Added an allocator template parameters to all classes that allocate dynamic memory.

Bug fixes in the code and documentation.

Changes from Version 1.1.6 to 1.2.0

Complete redesign of the image import/export library.

Added support for Microsoft Visual C++ 7.1 (.net 2003). This is the first Microsoft compiler that compiles VIGRA without special configurations and work-arounds. Work-arounds for older MS compilers will probably no longer be maintained.

Added support for PNG image format.

Added cygwin support to the build system.

Added pixel neighborhood utilities and vigra::NeighborhoodCirculator.

Added vigra::CrackContourCirculator

Added recursiveFilterX() and recursiveFilterY() that support negative filter coefficients and all BorderTreatmenModes

Changed gaussianSmoothing() to use BORDER_TREATMENT_REFLECT

Added simpleSharpening() and gaussianSharpening()

Added vigra::Size2D, vigra::Point2D, vigra::Rect2D

Added vigra::BasicImageView

Split "utilities.hxx" into "diff2d.hxx", "interpolating_accessor.hxx", "iteratortags.hxx", "mathutil.hxx", "metaprogramming.hxx", "tuple.hxx". "utilities.hxx" now includes these other files.

Added Multi-Dimensional Arrays and Iterators and Import/export of volume data.

Redesigned vigra::TinyVector, added vigra::TinyVectorView

Changes from Version 1.1.5 to 1.1.6

Restored VIGRA compatibility with Microsoft Visual C++ 6.0 (in addition to C++.net)

Changes from Version 1.1.4 to 1.1.5

Added vigra::ImageArray.

Added more corner detectors (see Corner Detection).

Added local symmetry detector (see Symmetry Detection).

Added Gabor filter code (see Gabor Filter).

Extended functor expression library .

Added initImageWithFunctor().

Improved Gaussian derivative filters (higher accuracy, correct sign, see vigra::Kernel1D::initGaussianDerivative()).

Ported VIGRA to Microsoft VisualC++.net (however, this compiler still doesn't support all VIGRA features, because it still doesn't implement partial template specialization and partial function ordering).

Finished the new build system.

Improved the documentation.

Changes from Version 1.1.3 to 1.1.4

Added Fourier transform support, and FFTWComplex complex number type.

Added convolution convenience functions (see Common Filters).

Added vigra::IteratorAdaptor template for quick and easy generation of iterator adaptors.

Used vigra::IteratorAdaptor to implement improved row and column iterators for images.

Added rowIterator() and columnIterator() functions returning optimized iterator adapters to all 2D iterators (e.g. vigra::ImageIterator). Changed algorithms to make use of these new members.

Added rounding and clipping to accessor functions when floating point values are converted to intergral numbers.

Added STL-compatible typedefs to all functors, iterators and vigra::BasicImage.

Removed ConstRowIterator and ConstColumnsIterator. Thanks to the new typedefs, RowIterator and ColumnIterator are automatically const when the underlying iterator was const. Thus, separate const iterators are not necessary.

Major performance tuning. Many algorithms now actually perform as fast as their inflexible C counterparts. Thanks to Paul Viola for doing benchmarks.

Changes from Version 1.1.2 to 1.1.3

Switched from obsolete doc++ documentation generator to doxygen.

Improved documentation.

Minor changes to the code to quiet compiler warnings if compiling with "<TT>g++ -Wall -pedantic</TT>".

Dropped support for rint() as this was not portable enough.

In error.hxx: replaced snprintf() with sprintf() for portability.

Renamed CellGridImage into CrackEdgeImage in Edge Detection.

Added vigra::TinyVector and made vigra::RGBValue derive from it.

Added typedefs for TinyVector images.

Added Color Space Conversions.

Added vigra::VectorComponentAccessor.

Extended vigra::FindMinMax to work with RGB images.

Minor improvements and bug fixes.

Changes from Version 1.1.1 to 1.1.2

Made VIGRA compile under MS Visual C++ 6.0.

Added vigra::BrightnessContrastFunctor.

Added gradientBasedTransform() and related vigra::MagnitudeFunctor and vigra::RGBGradientMagnitudeFunctor.

Added nonlinearDiffusion().

Added more smoothing methods to smooth example.

Added resize example.

Minor corrections and bug fixes.

Changes from Version 1.1.0 to 1.1.1

Fixed bug with PNM import code.

added Canny edge detection algorithm (code adapted from C implementation by Sven Utcke)

Changes from Version 1.0 to 1.1.0

Put everything in namespace "vigra".

Renamed
VigraStdException => StdException.
vigraImpexListFormats() => impexListFormats()

Added expression templates for automated functor creation.

Added support for input/output of the PNM image file format (contributed by Mikhail Amchislavsky).

Improved support for the TIFF image format. VIGRA can now read and create TIFF with various pixel types (unsigned byte, short and long int, float, double).

Renamed Dist2D into vigra::Diff2D, since it represents a difference vector rather than a distance. Extended Diff2D so that it can also act as a vigra::CoordinateIterator. Note that this required renaming Dist2D::width and Dist2D::height into Diff2D::x and Diff2D::y respectively.

Changed the documentation layout.

Improved labelImage() according to ideas of Prof. Vladimir Kovalevsky.

Several minor changes and bug fixes.

© Ullrich Köthe (ullrich.koethe@iwr.uni-heidelberg.de)
Heidelberg Collaboratory for Image Processing, University of Heidelberg, Germany

html generated using doxygen and Python
vigra 1.9.0 (Tue Oct 22 2013)