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OpenCV-2.0.0a-win32.Readme.Please.txt 2009-10-01 4.6 kB 88 weekly downloads
OpenCV-2.0.0a-win32.exe 2009-10-01 25.7 MB 268268 weekly downloads
This is OpenCV 2.0, the installation package for Windows. The major new features: ======================= * the brand-new C++ interface, in addition to the existing OpenCV 1.x C API. * a lot of new functionality, especially in the area of feature detectors and descriptors * SSE2 optimization of many functions * the revised directory structure and the completely new CMake-based build system * completely new documentation, available offline as PDF (included) and online: http://opencv.willowgarage.com/documentation/index.html and a lot more; please, see the ChangeLog. Important installation notes: ============================= 1. The library is better to be installed to a directory _without_ a space in its name, such as the default C:\OpenCV2.0 - otherwise (e.g. if you install it to C:\Program Files\OpenCV2.0) you may get compile errors. This is a limitation of the current build scripts. 2. Due to many technical problems the installation package does not include pre-compiled OpenCV libraries for Visual Studio users. Instead, it includes libraries built with MinGW 4.3.3 TDM-SJLJ. They are good enough to run the C/C++ and Python samples and tests, but for developing your OpenCV-based applications using Visual Studio, Borland IDE etc., or even a different version of MinGW, you need to build the libraries with your compiler using CMake, as explained here: http://opencv.willowgarage.com/wiki/InstallGuide. Here is the procedure at glance: -------------------------------- 1. Download CMake from http://www.cmake.org/cmake/resources/software.html and install it. 2. Run CMake GUI tool and configure OpenCV there: 2.1. select C:\OpenCV2.0 (or the installation directory you chose) as the source directory; 2.2. choose some other directory name for the generated project files, e.g. C:\OpenCV2.0\vs2008, or D:\Work\OpenCV_MinGW etc. 2.3. press Configure button, select your preferrable build environment 2.4. adjust any options at your choice 2.5. press Configure again, then press Generate. 3a. In the case of Visual Studio or any other IDE, open the generated solution/workspace/project ..., e.g. C:\OpenCV2.0\vs2008\OpenCV.sln, build it in Release and Debug configurations. 3b. In the case of command-line Makefiles, enter the destination directory and type "make" (or "nmake" etc.) 4. Add the output directories to the system path, e.g.: C:\OpenCV2.0\vs2008\bin\Debug;C:\OpenCV2.0\vs2008\bin\Release:%PATH% It is safe to add both directories, since the Debug OpenCV DLLs have the "d" suffix, which the Release DLLs do not have. 5. Optionally, add C:\OpenCV2.0\include\opencv to the list of include directories in your IDE settings, and the output library directories (e.g. C:\OpenCV2.0\vs2008\lib\{Debug,Release}) to the list of library paths. It is important to build both release and debug configurations, and link you code with the proper libraries in each configuration, otherwise various compile-time or run-time errors are possible. Known issues: ============= 1. Python 2.6 bindings for OpenCV are included within the package, but not installed. You can copy the subdirectory opencv/Python2.6/Lib/site-packages into the respective directory of the Python installation. This procedure will be automated in the next OpenCV update. 2. Several (actually, most) SWIG-based Python samples do not work correctly now. The reason is this problem is being investigated and the intermediate update of the OpenCV Python package will be released as soon as the problem is sorted out. 3. The library has not been tested on 64-bit Windows versions. But it is known to have some limitations in the highgui part, such as the lack of FFMPEG and DirectShow support. 4. The library can be built with VS2003.NET, and all the tests pass, but DirectShow support (via videoInput library) is not included. Differences between OpenCV-2.0.0-win32.exe and OpenCV-2.0.0a-win32.exe: ======================================================================= 1. Visual Studio 2003.NET is now supported 2. Corrected bug in matrix routines that could produce incorrect results or even cause runtime errors. 3. A few other minor changes to sync the content with the source package for Unix.
Source: OpenCV-2.0.0a-win32.Readme.Please.txt, updated 2009-10-01