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|Credits and Changelog|
Ullrich Köthe originated and wrote the library.
Mikhail Amchislavsky (firstname.lastname@example.org) contributed code to read and write PNM files.
Hans Meine (email@example.com) 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.
Yevgen Reznichenko (firstname.lastname@example.org) added a number of image processing algorithms.
Christian Dennis Rahn (email@example.com) implemented initial versions of multi-dimensional convolution filters.
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.
Frank Lenzen contributed his implementations of total variation filters.
Patrick Fahner helped writing the tutorial.
Stefan Schmidt made major contributions to vigra::GridGraph.
Martin Bidlingmaier extended various image processing function to support block-wise execution on large data.
Thorsten Beier implemented many graph-based image analysis algorithms and parallel versions of important image processing functions.
Benjamin Seppke contributed various image registration algorithms.
John Kirkham figured out how to configure Travis to run tests for Python3 and on OS X.
Philip Schill implemented version 3 of the Random Forest.
David Stöckel contributed the 3D convex hull functionality.
Many thanks to all!
Changes from Version 1.11.0 to 1.11.1
Added 3D convex hull computation and features (David Stöckel).
Added Random Forest version 3, inspired by LEMON's graph API, to simplify customization of RF variants (Philip Schill).
Improved hierarchical clustering (Cpnstantin Pape).
Changes from Version 1.10.0 to 1.11.0
Ported vigranumpy to Python 3.5.
Added Chunked arrays to store data larger than RAM as a collection of rectangular blocks.
Implemented parallel versions of Gaussian smoothing, Gaussian derivatives, connected components labeling, and union-find watersheds.
Added graph-based image analysis, e.g. agglomerative clustering
Included the callback mechanism described in "Impossibly Fast C++ Delegates" by Sergey Ryazanov (needed for agglomerative clustering).
Added many image registration functions.
Extended the collection of multi-dimensional distance transform algorithms by vectorial DT, boundary DT, and eccentricity transform.
Added skeletonizeImage(), nonLocalMean(), multi-dimensional integral images.
Added new 2D shape features based on skeletonization and the convex hull.
Additional arithmetic and algebraic functions for vigra::TinyVector.
Minor improvements and bug fixes in the code and documentation.
Changes from Version 1.9.0 to 1.10.0
VIGRA got a Tutorial !
Significant simplification of the API:
MultiArrayView arguments can now be passed to functions directly:
The old syntax with Argument Object Factories (
srcMultiArray() and relatives) remains valid, but is only required when the arguments are old-style
StridedArrayTag the default for vigra::MultiArrayView .
Added an efficient multi-dimensional vigra::GridGraph class which support both the LEMON and boost::graph APIs.
Generalized various algorithms to arbitrary dimensions (gaussianGradientMultiArray(), hessianOfGaussianMultiArray(), gaussianDivergenceMultiArray(), localMinima(), localMaxima(), labelMultiArray(), watershedsMultiArray()).
Added slicSuperpixels() for arbitrary dimensions.
Added automatic differentiation (see vigra::autodiff::DualVector).
Added nonlinearLeastSquares() using the Levenberg-Marquardt algorithm and automatic differentiation.
Added a function
setCoordinateOffset() to the feature accumulator classes to enable block-wise computation of coordinate-based features.
Added vigra::MultiCoordinateIterator to enumerate the grid coordinates of a multi-dimensional array.
Fixed thread-safety of
RandomForest::learn() (random seeding) and
Improved HDF5 I/O for strided
MultiArrayViews and HDF5 on-the-fly compression.
VigranumpyConfig.cmake to simplify cmake-based compilation of custom vigranumpy modules.
Changes from Version 1.8.0 to 1.9.0
Flexible incremental computation of image and region statistics via Feature Accumulators and corresponding Python bindings (see vigra.analysis.extractFeatures() and vigra.analysis.extractRegionFeatures()).
Simultaneous iteration over several arrays via vigra::CoupledScanOrderIterator.
Fixed Python bindings of Unsupervised Decomposition.
Various convenience functions for vigranumpy's VigraArray.
Changes from Version 1.7.1 to 1.8.0
Various extensions to Local Minima and Maxima (3D algorithms, on-the-fly thresholding).
Refactored and extended 2D watershed algorithms (especially watershedsRegionGrowing()).
Added the vigra::Quaternion class.
Added Unsupervised Decomposition.
Implemented wrapper of the FFTW library to support arbitrary dimensional Fourier transforms (see fourierTransform() and vigra::FFTWPlan) and FFT-based convolution (see convolveFFT() and vigra::FFTWConvolvePlan) and refactored vigra::FFTWComplex.
Added capability to handle subarrays and anisotropic resolution to separableConvolveMultiArray() and related Gaussian filters. Added
windowRatio parameters to vigra::Kernel1D::initGaussian() and vigra::Kernel1D::initGaussianDerivative()
Extended vigra::MultiArrayView. Added vigra::Shape1 ... vigra::Shape5 convenience typedefs.
Implemented vigra::multi_math (arithmetic and algebraic functions for multi-dimensional arrays).
Extended the vigra::HDF5File class.
Improved and documented the Timing macros for runtime measurements.
Added support for the OpenEXR image format and multi-page TIFF. Improved support for the SIF format.
vigranumpy: added axistags and completly re-implemented VigraArray and the conversion between Python and C++ arrays in terms of axistags.
Changes from Version 1.7.0 to 1.7.1
Fixed the build process for MacOS X.
vigra-config (script to query VIGRA installation information) and added
VigraConfig.cmake (query VIGRA installation information from within cmake).
Added CDash support (nightly builds and tests).
Added vigra::Sampler class to sample given data in various ways.
Added much new functionality to the vigra::RandomForest class (e.g. more split strategies, variable importance measures, feature selection)
Added readSIF() (reader for the Andor SIF file format).
Added vigra::HDF5File for easier navigation in HDF5 files.
vigranumpy: added Gabor filtering.
Fixed multi-threading bugs at various places.
Changes from Version 1.6.0 to 1.7.0
Implemented a new build system on the basis of cmake.
Added vigranumpy (VIGRA Python bindings).
Added Vigra Matlab.
Added vigra::RandomForest classifier.
Changes from Version 1.5.0 to 1.6.0
Added functions for arrays of arbitrary dimensions:
Added Random Number Generation
Added affineWarpImage() and and factory functions for affine transformation matrices
Extended MultiArrayView::norm() to compute L1, L2 and Linfinity, added MultiArrayView::swapData(), MultiArrayView::permuteDimensions(), MultiArrayView::transpose(), and other minor improvements to MultiArrayView
Added typedef vigra::MultiArrayIndex to fix signed/unsigned mismatch problems
Minor improvements in Image Import/Export Facilities
Added sRGB to Color Space Conversions
Added weighted operator()s to FindAverage[AndVariance] functors.
Changed default border treatment of Gaussian filters and derivatives to BORDER_TREATMENT_REFLECT
Promoted documentation to Doxygen 1.5.6
Changes from Version 1.4.0 to 1.5.0
Added Noise Normalization
Added Camera MTF Estimation
Added srcImage(), srcImageRange() etc. with ROI (see Argument Object Factories)
Improved the Image Import/Export Facilities (thanks to Pablo d'Angelo, Douglas Wilkins and others):
Improved support of 64-bit compilers.
Dropped "vigra/" from #includes in headers (so compiler will first look in the same directory).
Switched to relative paths in the MSVC project files. Compile vigraimpex into a DLL.
Changes from Version 1.3.3 to 1.4.0
Switched to the MIT X11 License.
Introduced Fixed Size Integer Types (UInt8, Int16 etc.) and made VIGRA compile on 64-bit compilers. Thanks to Hans Ekkehard Plesser firstname.lastname@example.org) for bug reports and other help. Added corresponding typedefs UInt8Image, Int16RGBImage etc.
Added NumericTraits::isSigned. Thanks to Pablo D'Angelo email@example.com) for a patch.
Added cross() (cross product).
Extended vigra::SplineImageView to support access outside the image border according to reflective boundary conditions. Added partial specializations for orders 0 and 1 to speed up computations.
Changes from Version 1.3.2 to 1.3.3
Added the test suite to the distribution (see installation section)
Changes from Version 1.3.1 to 1.3.2
Added Matrix class.
Added Matrix algebra, solution of linear systems, eigenvalue computation".
Changes from Version 1.3.0 to 1.3.1
Fixed syntax for dependent types in templates to make VIGRA compile with g++ 3.4 (which is very strict in enforcing dependent type rules).
Added reduce and expand modes to the multi-dimensional point operators.
Changes from Version 1.2.0 to 1.3.0
Added more mathematical functions and functors.
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
allocator template parameters to all classes that allocate dynamic memory.
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.
Changed gaussianSmoothing() to use BORDER_TREATMENT_REFLECT
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 Import/export of volume data.
Changes from Version 1.1.5 to 1.1.6
Changes from Version 1.1.4 to 1.1.5
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 .
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.
Changes from Version 1.1.3 to 1.1.4
Added convolution convenience functions (see Convolution 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.
Changes from Version 1.1.2 to 1.1.3
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 typedefs for TinyVector images.
Added Color Space Conversions.
Extended vigra::FindMinMax to work with RGB images.
Changes from Version 1.1.1 to 1.1.2
Made VIGRA compile under MS Visual C++ 6.0.
Added more smoothing methods to smooth example.
Added resize example.
Changes from Version 1.1.0 to 1.1.1
Fixed bug with PNM import code.
Changes from Version 1.0 to 1.1.0
Put everything in namespace "vigra".
VigraStdException => StdException.
vigraImpexListFormats() => impexListFormats()
<li> Added expression templates for \ref FunctorExpressions "automated functor creation". <li> Added support for input/output of the PNM image file format (contributed by <a href="mailto:firstname.lastname@example.org">Mikhail Amchislavsky</a>). <li> Improved support for the \ref TIFFImpex "TIFF image format". VIGRA can now read and create TIFF with various pixel types (unsigned byte, short and long int, float, double). <li> Renamed Dist2D into \ref vigra::Diff2D, since it represents a difference vector rather than a distance. Extended Diff2D so that it can also act as a \ref vigra::CoordinateIterator. Note that this required renaming <TT>Dist2D::width</TT> and <TT>Dist2D::height</TT> into <TT>Diff2D::x</TT> and <TT>Diff2D::y</TT> respectively. <li> Changed the documentation layout. <li> Improved \ref labelImage() according to ideas of Prof. Vladimir Kovalevsky. <li> Several minor changes and bug fixes.