diff --git a/ChangeLog.md b/ChangeLog.md index 81343ac..81b951e 100644 --- a/ChangeLog.md +++ b/ChangeLog.md @@ -1130,8 +1130,6 @@ version:3.0 These are changes since 3.0 rc1. -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - ![](images/bug.png) - Over 200 bugs reported at @@ -1140,16 +1138,12 @@ These are changes since 3.0 rc1. python wrappers, core, imgproc, photo, features2d, objdetect, contrib modules, as well as some performance improvements etc. -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - ![](images/threads.jpg) - Added pthreads-based backend for cv::parallel_for\_. It means that all the parallel processing should be available out-of-the-box on any POSIX-compatible OS, including QNX and such. You are welcome to try it out. -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - ![](images/android_ocv_small.png) - OpenCV Manager on Android has been completely rewritten in Java and @@ -1158,8 +1152,6 @@ These are changes since 3.0 rc1. - The other, a bit sad but inevitable news – we had to drop support for nativecamera on Android. It used some undocumented API and never worked stable. - - ![](images/daisy.jpg) - Many excellent contributions in opencv_contrib/xfeatures2d: @@ -1170,8 +1162,6 @@ These are changes since 3.0 rc1. OpenCV binary descriptors (ORB, BRIEF, AKAZE etc.) and is comparable with heavier and slower SURF. - - ![](images/github2.png) - Over 80 pull requests have been merged in since 3.0 rc. Big thanks @@ -1188,133 +1178,69 @@ These are changes since 3.0 rc1. $ git shortlog —no-merges -ns 3.0.0-rc1..origin/master 60 Vadim Pisarevsky 31 laurentBerger - 17 Maksim Shabunin - 10 cbalint13 - 7 Maxim Kostin - 6 Alexander Smorkalov - 6 Ilya Lavrenov - 6 StevenPuttemans - 6 Vladimir Dudnik - 5 Andrey Pavlenko - 5 GilLevi - 3 Dikay900 - 3 Philipp Hasper - 3 Ruslan Baratov - 3 rajithr - 3 sgjava - 2 Andreas Stührk - 2 Christian Richardt - 2 Deanna Hood - 2 Joe Minichino - 2 Luis Díaz Más - 2 Mansour Moufid - 2 Marek Nogacki - 2 Martin Ueding - 2 Vladislav Vinogradov - 2 Zhigang Gong - 2 kalistratovag - 1 AfterEight - 1 Aleksandr Petrikov - 1 Alexander Nitsch - 1 Andrew Senin - 1 Ashod Nakashian - 1 Belev - 1 Boris Daskalov - 1 Camille - 1 Craig Reynolds - 1 David Hirvonen - 1 Ehren Metcalfe - 1 Evgeny Agafonchikov - 1 Jüri Aedla - 1 Leonid Beynenson - 1 Martijn Liem - 1 Marvin Smith - 1 Michaël Sdika - 1 Mike Maraya - 1 Milania1 - 1 Niklas Frisk - 1 Owen Healy - 1 Patrik Huber - 1 Piotr Dobrowolski - 1 Roman Donchenko - 1 S. Garrido - 1 Samed Ozdemir - 1 Samuel Martin - 1 Samyak Datta - 1 Thomas Gabrowski - 1 Vicente Olivert Riera - 1 Vincent Rabaud - 1 Vladimir Kolesnikov - 1 aletheios - 1 berak - 1 jormansa - 1 lujia - 1 msandler - 1 yanlend - 1 zenev #### opencv_contrib @@ -1336,8 +1262,6 @@ version:3.0 rc These are changes since 3.0 beta. - - ![](images/compatibility.jpg) - Improved compatibility with OpenCV 2.4: @@ -1350,8 +1274,6 @@ These are changes since 3.0 beta. - the 2.4=>3.0 transition guide has been sketched: http://docs.opencv.org/master/db/dfa/tutorial_transition_guide.html - - ![](images/android_ocv_small.png) - We did not put OpenCV 3 to Google Play yet, but we prepared @@ -1359,8 +1281,6 @@ These are changes since 3.0 beta. and tried on your device. It can co-exist with OpenCV 2.4 Manager on the same device. - - ![](images/winrt_opencv.jpg) - There are multiple improvements and bug-fixes for WinRT port (as @@ -1371,8 +1291,6 @@ These are changes since 3.0 beta. - Also, the WMF video capturing backend has been greatly improved. - - ![](images/mjpeg.jpg) - Standalone motion jpeg codec has been added to opencv_videoio. It @@ -1384,8 +1302,6 @@ These are changes since 3.0 beta. each frame is encoded using baseline jpeg) and few random motion jpeg clips from net, but we have not tested it thoroughly. - - ![](images/hal.jpg) - Preliminary version of OpenCV HAL, @@ -1435,7 +1351,6 @@ These are changes since 3.0 beta. #### opencv - $ git shortlog —no-merges -ns 3.0.0-beta..origin/master 95 Vladislav Vinogradov 88 Maksim Shabunin @@ -1596,8 +1511,6 @@ These are changes since 3.0 alpha. Thanks Alexander Alekhin, Alexander Karsakov, Elena Gvozdeva, Vladimir Bystritsky, Sergey Sivolgin and other guys who did that! - - ![](images/neon.png) - About 40 commonly used image processing functions have been @@ -1605,16 +1518,12 @@ These are changes since 3.0 alpha. so OpenCV 3.0 beta should run noticeably faster on modern ARM chips. Big thanks to Ilya Lavrenov for the amazing job! - - ![](images/java_logo.svg.png) - Java bindings have been substantially improved. We now have bindings for the updated features2d, background subtractor classes, a part of opencv_contrib etc. Thanks to Maksim Shabunin for the improvements! - - ![](images/Intel_IPP_logo.png) - On x86 and x64 platforms OpenCV binaries include and use a subset of @@ -1622,8 +1531,6 @@ These are changes since 3.0 alpha. includes a subset of **Intel® IPP 8.2.1** with additional optimization for AVX2. - - ![](images/github2.png) - Over 200 pull requests have been merged in since 3.0 alpha. Big @@ -1761,8 +1668,6 @@ with detailed review of [OpenCV_3.0](opencv3) Intel chips (including Iris and Iris Pro) and AMD chips (such as Kaveri). More detailed results are to be provided later. - - ![](images/Intel_IPP_logo.png) - On x86 and x64 platforms OpenCV binaries include and use a subset of @@ -1770,8 +1675,6 @@ with detailed review of [OpenCV_3.0](opencv3) granted OpenCV Foundation and all our users the right to use those functions free of charge for both non-commercial and commercial use. - - ![](images/contrib.jpg) - We now have a separate repository for community-contributed @@ -1784,25 +1687,16 @@ with detailed review of [OpenCV_3.0](opencv3) - Grab a copy of contribution repository http://github.com/opencv/opencv_contrib along with a copy of OpenCV 3.0 alpha or a fresh master snapshot. -- Pass - - OPENCV_EXTRA_MODULES_PATH=/modules - - to CMake. - +- Pass `OPENCV_EXTRA_MODULES_PATH=/modules` to CMake. - Documentation for the contributed modules is integrated into OpenCV doc tree: http://docs.opencv.org/master - - ![](images/buildbot.png) - We completely revised our QA infrastructure (big thanks to Alexander Alekhin), which now covers not only the main repository, but also the contrib repository as well: http://pullrequest.opencv.org. - - ![](images/gsoc2013.jpg) ![](images/gsoc2014.jpg) - OpenCV 3.0 and its contribution repository feature a lot of new @@ -1839,8 +1733,6 @@ with detailed review of [OpenCV_3.0](opencv3) - Line descriptors and matchers by Biagio Montesano and Manuele Tamburrano - - ![](images/thank_you.jpg) - There are many other contributions, besides GSoC programs. Here is @@ -1868,7 +1760,7 @@ with detailed review of [OpenCV_3.0](opencv3) - Five-point pose estimation algorithm by Bo Li Also, big thanks to all the Itseez guys who reviewed patches, watched -bug reports and helped OpenCV in many other ways:\ +bug reports and helped OpenCV in many other ways: Alexander Shishkov (who also maintains opencv.org site), Andrey Pavlenko, Alexander Alekhin, Alexander Smorkalov, Roman Donchenko, Kirill Kornyakov, Andrey Kamaev, Sergey Sivolgin, Vladimir Bystritsky, @@ -1882,7 +1774,6 @@ Bradski, Vincent Rabaud, Harris Gasparakis, Stefano Fabri and many others. - ![](images/attention.png) - Although OpenCV 3 can be viewed as refined OpenCV 2 and is similar @@ -1898,13 +1789,17 @@ others. bindings (opencv_contrib/matlab); motion templates & simple flow (opencv_contrib/optflow). - In OpenCV 3 we write + - ```.cpp #include “opencv2/core.hpp” ``` + instead of + ```.cpp #include “opencv2/core/core.hpp” ``` + The old method should also work. - ML module has been completely revised (and at the moment the functionality is not 100% match for OpenCV 2.4.x), you will need @@ -2232,20 +2127,19 @@ version:2.4.6 `opencv/platforms` directory - fixed bug with incorrect saved video from camera through CvVideoCamera -- added `` `rotateVideo` `` flag to the `CvVideoCamera` class to +- added `rotateVideo` flag to the `CvVideoCamera` class to control camera preview rotation on device rotation - added functions to convert between `UIImage` and `cv::Mat` (just include `opencv2/highgui/ios.h`) ![](images/bug.png) -- [numerous - bug-fixes](http://code.opencv.org/projects/opencv/issues?query_id=52) +- [numerous bug-fixes](http://code.opencv.org/projects/opencv/issues?query_id=52) across all the library ![](images/android_ocv_small.png) -- see also \[\[Android_Release_Notes\]\] +- see also [Android_Release_Notes](Android_Release_Notes) ### Contributors @@ -2288,7 +2182,7 @@ version:2.4.5 ![](images/winrt_opencv.jpg) -- Experimental WinRT support (build for \[\[WindowsRT\]\] guide) +- Experimental WinRT support (build for [WindowsRT](WindowsRT) guide) ![](images/superres.jpg) @@ -2340,8 +2234,7 @@ version:2.4.4 - This is the biggest news in 2.4.4 – we’ve got full-featured OpenCV Java bindings on a desktop, not only Android! In fact you can use any JVM language, including functional - Java or handy Groovy. Big thanks to [Eric - Christiansen](https://plus.google.com/u/0/114834902961564956461) for + Java or handy Groovy. Big thanks to [Eric Christiansen](https://plus.google.com/u/0/114834902961564956461) for the contribution! Check the [tutorial](http://docs.opencv.org/doc/tutorials/introduction/desktop_java/java_dev_intro.html) for details and code samples. @@ -2349,7 +2242,7 @@ version:2.4.4 ![](images/android_ocv_small.png) - Android application framework, samples, tutorials, OpenCV Manager - are updated, see \[\[Android_Release_Notes\]\] for details. + are updated, see [Android_Release_Notes](Android_Release_Notes) for details. ![](images/CUDA.jpg) @@ -2686,13 +2579,9 @@ before as well as after 2.4 release. now the primary site for OpenCV development and http://opencv.org will be the official OpenCV user site. - - - Some of the old functionality from the modules `imgproc`, `video`, `calib3d`, `features2d`, `objdetect` has been moved to legacy. - - - CMake scripts have been substantially modified. Now it’s very easy to add new modules – just put the directory with include, src, doc and test sub-directories to the modules directory, create a very @@ -2713,14 +2602,10 @@ before as well as after 2.4 release. - one can save algorithm parameters to XML/YAML file and then load them. - - - A new ffmpeg wrapper has been created that features multi-threaded decoding, more robust video positioning etc. It’s used with ffmpeg starting with 0.7.x versions. - - - `features2d` API has been cleaned up. There are no more numerous classes with duplicated functionality. The base classes `FeatureDetector` and `DescriptorExtractor` are now @@ -2728,65 +2613,45 @@ before as well as after 2.4 release. using which you can detect keypoints and compute the descriptors in a single call. This is also more efficient. - - - SIFT and SURF have been moved to a separate module named `nonfree` to indicate possible legal issues of using those algorithms in user applications. Also, SIFT performance has been substantially improved (by factor of 3-4x). - - - The current state-of-art textureless detection algorithm, Line-Mod by S. Hinterstoisser, has been contributed by Patrick Mihelich. See `objdetect/objdetect.hpp`, class `Detector`. - - - 3 face recognition algorithms have been contributed by Philipp Wagner. Please, check `opencv/contrib/contrib.hpp`, `FaceRecognizer` class, and `opencv/samples/cpp/facerec_demo.cpp`. - - - 2 algorithms for solving PnP problem have been added. Please, check `flags` parameter in `solvePnP` and `solvePnPRansac` functions. - - - Enhanced `LogPolar` implementation (that uses Blind-Spot model) has been contributed by Fabio Solari and Manuela Chessa, see `opencv/contrib/contrib.hpp`, `LogPolar_*` classes and `opencv/samples/cpp/logpolar_bsm.cpp` sample. - - - A stub module `photo` has been created to support a quickly growing “computational photography” area. Currently, it only contains `inpainting` algorithm, moved from `imgproc`, but it’s planned to add much more functionality. - - - Another module `videostab` (beta version) has been added that solves a specific yet very important task of video stabilization. The module is under active development. Please, check `opencv/samples/cpp/videostab.cpp` sample. - - - `findContours` can now find contours on a 32-bit integer image of labels (not only on a black-and-white 8-bit image). This is a step towards more convenient connected component analysis. - - - `Canny` edge detector can now be run on color images, which results in better edge maps - - - Python bindings can now be used within python threads, so one can write multi-threaded computer vision applications in Python. @@ -2797,15 +2662,11 @@ before as well as after 2.4 release. - PyrLK – both Dense and Sparse variations - Farneback - - - New feature detectors and descriptors: - `GoodFeaturesToTrack` - FAST/ORB which is patent free replacement of SURF. - - - Overall GPU module enhancements: - The module now requires CUDA 4.1 or later; @@ -2813,25 +2674,19 @@ before as well as after 2.4 release. - Added border extrapolation support for many functions; - Improved performance. - - - `pyrUp`/`pyrDown` implementations. - - - Matrix multiplication on GPU (wrapper for the CUBLAS library). This is optional, user need to compile OpenCV with CUBLAS support. - - - `OpenGL back-end` has been implemented for `highgui` module, that allows to display `GpuMat` directly without downloading them to CPU. ### OpenCV4Android -See the \[\[Android_Release_Notes\]\]. +See the [Android_Release_Notes]. ### Performance @@ -2839,8 +2694,6 @@ See the \[\[Android_Release_Notes\]\]. conversions, brute-force feature matcher have been optimized using TBB and/or SSE intrinisics. - - - Along with regression tests, now many OpenCV functions have got performance tests. Now for most modules one can build `opencv_perf_` executables that run various functions @@ -2848,7 +2701,7 @@ See the \[\[Android_Release_Notes\]\]. tests, as well as the normal regression tests, you will need to get (a rather big) http://code.opencv.org/svn/opencv/trunk/opencv_extra directory and set environment variable `OPENCV_TEST_DATA_PATH` to - “`/testdata`”. + `/testdata`. ### Bug fixes @@ -2862,9 +2715,9 @@ See the \[\[Android_Release_Notes\]\]. `Algorithm::create`) can fail because linker excludes the “unused” object files. To avoid this problem, create classes explicitly, e.g - - + ```.cpp Ptr d = new BriefDescriptorExtractor; + ``` 2.3.1 ----- @@ -2885,28 +2738,18 @@ port of features2d. `opencv_contrib` module). See the new retina sample and https://sites.google.com/site/benoitalexandrevision/. - - - Support for Ximea cameras (http://www.ximea.com/) in `highgui` has been contributed by Ximea developers. - - - Planar subdivisions construction (Delaunay triangulation and Voronoi tessellation) have been ported to C++. See the new `delaunay2.cpp` sample. - - - Several new Python samples have been added. - - - `FLANN` in OpenCV has been upgraded to v1.6. Also, added Python bindings for `FLANN`. - - - We now support the latest FFMPEG (0.8.x) that features multi-threaded decoding. Reading videos in OpenCV has never been that fast. @@ -2947,8 +2790,6 @@ port of features2d. - A few more bugs reported in the OpenCV bug tracker have been fixed. - - - Documentation has been improved a lot! The new reference manual combines information for C++ and C interfaces, the OpenCV 1.x-style Python bindings and the new C++-style Python bindings. It has also @@ -2969,8 +2810,6 @@ The installation package is probably to come in the next version. - VS2005 should build OpenCV 2.3 out of the box, including `DirectShow` support. - - - ffmpeg bindings are now available for all Windows users via compiler- and configuration- and\ version-independent `opencv_ffmpeg.dll` (for 32-bit compilers) and @@ -2987,8 +2826,6 @@ The installation package is probably to come in the next version. testing OpenCV snapshots. The current status is available at http://pullrequest.opencv.org/ - - - OpenCV switched to Google Test (http://code.google.com/p/googletest/) engine for regression and correctness tests. Each module now has “test” sub-directory @@ -3000,11 +2837,9 @@ The installation package is probably to come in the next version. instead of `cv::Mat` references. It retains compatibility with the existing code and yet brings more natural support for STL vectors and potentially other “foreign” data structures to OpenCV. See - http://docs.opencv.org/modules/core/doc/intro.html\#inputarray-and-outputarray + http://docs.opencv.org/modules/core/doc/intro.html#inputarray-and-outputarray for details. - - - `core` - `LAPACK` is not used by OpenCV anymore. The change decreased the library footprint and the compile time. We now use our own @@ -3015,32 +2850,23 @@ The installation package is probably to come in the next version. - Arithmetic operations now support mixed-type operands and arbitrary number of channels. - - - `features2d` - Completely new patent-free `BRIEF` and `ORB` feature descriptors have been added. - Very fast LSH matcher for `BRIEF` and `ORB` descriptors will be added in 2.3.1. - - - `calib3d` - - A new calibration pattern, [circles - grid](http://code.opencv.org/svn/opencv/branches/2.3/opencv/doc/acircles_pattern.png), + - A new calibration pattern, [circles grid](http://code.opencv.org/svn/opencv/branches/2.3/opencv/doc/acircles_pattern.png), has been added. See findCirclesGrid() function and the updated calibration.cpp sample. With the new pattern calibration accuracy is usually much higher. - - - `highgui` - - \[Windows\] `videoInput` is now a part of `highgui`. If there + - Windows `videoInput` is now a part of `highgui`. If there are any problems with compiling `highgui`, set `WITH_VIDEOINPUT=OFF` in CMake. - - - `stitching` - `opencv_stitching` is a beta version of new application that makes a panorama out of a set of photos taken from the @@ -3072,27 +2898,21 @@ The installation package is probably to come in the next version. port (which is actually not a separate branch of OpenCV, it’s the same code tree with additional build scripts) has been greatly improved, a few demos developed. Camera support has been added as - well.\ - See \[\[Android_Release_Notes\#231-beta1\]\] for details. + well. + See [Android_Release_Notes#231-beta1] for details. ### Documentation - OpenCV documentation is now written in `ReStructured Text` and built using `Sphinx` (http://sphinx.pocoo.org). - - - It’s not a single reference manual now, it’s 4 reference manuals (OpenCV 2.x C++ API, OpenCV 2.x Python API, OpenCV 1.x C API, OpenCV 1.x Python API), the emerging user guide and a set of tutorials for beginners. - - - Style and grammar of the main reference manual (OpenCV 2.x C++ API) have been thoroughly checked and fixed. - - - Online up-to-date version of the manual is available at http://docs.opencv.org @@ -3117,8 +2937,6 @@ The installation package is probably to come in the next version. - Documentation (especially on the new Python bindings) is still being updated. Watch http://docs.opencv.org for updates. - - - Android port does not provide Java interface for OpenCV. It is going to be added to [2.3 branch](http://code.opencv.org/svn/opencv/branches/2.3/opencv) in a @@ -3168,8 +2986,9 @@ names) and update the include paths. It is still possible to use `#include ` etc. but the recommended notation is: + ```.cpp #include "opencv2/imgproc/imgproc.hpp" - ... + ``` Please, check the new C and C++ samples (http://code.opencv.org/svn/opencv/trunk/opencv/samples), which now @@ -3181,13 +3000,8 @@ include the new-style headers. SWIG-based Python wrappers are not included anymore. - - - OpenCV can now be built for Android (GSoC 2010 project), thanks to - Ethan Rublee; and there are some samples too. Please, check - \[\[OpenCV4Android\]\] - - + Ethan Rublee; and there are some samples too. Please, check [OpenCV4Android] - The completely new `opencv_gpu` acceleration module has been created with support by NVIDIA. See below @@ -3215,8 +3029,6 @@ include the new-style headers. - `cv::exp` and `cv::log` are now much faster thanks to SSE2 optimization. - - - `imgproc` - color conversion functions have been rewritten; - RGB→Lab & RGB→Luv performance has been @@ -3233,8 +3045,6 @@ include the new-style headers. - special variant of `initUndistortRectifyMap` for wide-angle cameras has been added: `initWideAngleProjMap()` - - - `features2d` - the unified framework for keypoint extraction, computing the descriptors and matching them has been introduced. The @@ -3262,45 +3072,28 @@ include the new-style headers. parallelized using TBB (the patch is by imahon and yvo2m) - - - `objdetect` - LatentSVM object detector, implementing P. Felzenszwalb algorithm, has been contributed by Nizhniy Novgorod State University (NNSU) team. See `opencv/samples/c/latentsvmdetect.cpp` - - - `calib3d` - - The new rational distortion model: + - The new rational distortion model has been introduced. It is useful for calibration of cameras with + wide-angle lenses. + Because of the increased number of parameters to optimize you need to + supply more data to robustly estimate all of them. Or, simply initialize + the distortion vectors with zeros and pass `CV_CALIB_RATIONAL_MODEL` to + enable the new model + `CV_CALIB_FIX_K3 + CV_CALIB_FIX_K4 + CV_CALIB_FIX_K5` or other such + combinations to selectively enable or disable certain coefficients. -`x' = x * (1` + `k`~1~ \* `r`\^2\^ + `k`~2~ \* `r`\^4\^ + `k`~3~ -\* `r`\^6\^`)/(1` + `k`~4~ \* `r`\^2\^ + `k`~5~ \* `r`\^4\^ + -`k`~6~ \* `r`\^6\^`) +` *<tangential_distortion for @x@>*,\ -`y' = y * (1` + `k`~1~ \* `r`\^2\^ + `k`~2~ \* `r`\^4\^ + `k`~3~ -\* `r`\^6\^`)/(1` + `k`~4~ \* `r`\^2\^ + `k`~5~ \* `r`\^4\^ + -`k`~6~ \* `r`\^6\^`) +` *<tangential_distortion for @y@>* - -has been introduced. It is useful for calibration of cameras with -wide-angle lenses.\ -Because of the increased number of parameters to optimize you need to -supply more data to robustly estimate all of them. Or, simply initialize -the distortion vectors with zeros and pass `CV_CALIB_RATIONAL_MODEL` to -enable the new model -`CV_CALIB_FIX_K3 + CV_CALIB_FIX_K4 + CV_CALIB_FIX_K5` or other such -combinations to selectively enable or disable certain coefficients. - -- rectification of trinocular camera setup, where all 3 heads are on - the same line, is added. see `samples/cpp/3calibration.cpp` - - + - rectification of trinocular camera setup, where all 3 heads are on + the same line, is added. see `samples/cpp/3calibration.cpp` - `ml` - Gradient boosting trees model has been contributed by NNSU team. - - - `highgui` - Experimental Qt backend for OpenCV has been added as a result of GSoC 2010 project, completed by Yannick Verdie. The backend has @@ -3310,7 +3103,7 @@ combinations to selectively enable or disable certain coefficients. and radio buttons, interactive zooming, panning of the images displayed in `highgui` windows, “save as” etc. Please, check the youtube videos where Yannick demonstrates the new features: - http://www.youtube.com/user/MrFrenchCookie\#p/u + http://www.youtube.com/user/MrFrenchCookie#p/u - The new API is described here: http://docs.opencv.org/modules/highgui/doc/qt_new_functions.html To make use of the new API, you need @@ -3322,29 +3115,23 @@ combinations to selectively enable or disable certain coefficients. now supported. - You can now set the mode for IEEE1394 cameras on Linux. - - - `contrib` - Chamfer matching algorithm has been contributed by Marius Muja, Antonella Cascitelli, Marco Di Stefano and Stefano Fabri. See `samples/cpp/chamfer.cpp` - - -- `gpu`\ +- `gpu` This is completely new part of OpenCV, created with the support by - NVIDIA.\ + NVIDIA. Note that the package is at alpha, probably early beta state, so use it with care and check OpenCV SVN for updates. In order to use it, you need to have the latest NVidia CUDA SDK installed, and -build OpenCV with CUDA support -(`-DWITH_CUDA=ON` CMake flag). +build OpenCV with CUDA support (`-DWITH_CUDA=ON` CMake flag). All the functionality is put to `cv::gpu` namespace. The full list of -functions and classes can be found at\ -`opencv/modules/gpu/include/opencv2/gpu/gpu.hpp`, and here are some +functions and classes can be found at `opencv/modules/gpu/include/opencv2/gpu/gpu.hpp`, and here are some major components of the API: - image arithmetics, filtering operations, morphology, geometrical @@ -3352,11 +3139,9 @@ major components of the API: - 3 stereo correspondence algorithms: Block Matching, Belief Propagation and Constant-Space Belief Propagation. - HOG-based object detector. It runs more - than order of magnitude faster than the CPU version!\ + than order of magnitude faster than the CPU version! See `opencv/samples/gpu` - - - `python` bindings\ A lot more of OpenCV 2.x functionality is now covered by Python bindings. @@ -3370,12 +3155,14 @@ They will be automatically created by the functions. Here is a micro example: + ```.py import cv a=cv.imread("lena.jpg",0) b=cv.canny(a, 50, 100, apertureSize=3) cv.imshow("test",b) cv.waitKey(0) + ``` In the sample `a` and `b` are normal `numpy` arrays, so the whole power of `numpy` and `scipy` can now be combined with OpenCV functionality. @@ -3385,8 +3172,6 @@ of `numpy` and `scipy` can now be combined with OpenCV functionality. - Links to wiki pages have been added to each function description, see http://opencv.willowgarage.com - - - All the samples have been documented with default output ‘’(0 or incomplete number of parameters)’’ set to print out “howto” run instructions; most samples have been converted to C++ to use the new @@ -3398,8 +3183,6 @@ of `numpy` and `scipy` can now be combined with OpenCV functionality. still open) are listed at http://code.opencv.org/projects/opencv/issues?set_filter=1 - - - The old bug tracker at https://sourceforge.net/projects/opencvlibrary/ is now closed for updates. As soon as all the still relevant bug reports will be