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Diffstat (limited to 'libraries/opencv/README')
-rw-r--r-- | libraries/opencv/README | 79 |
1 files changed, 0 insertions, 79 deletions
diff --git a/libraries/opencv/README b/libraries/opencv/README deleted file mode 100644 index 38ce4bcba59ac..0000000000000 --- a/libraries/opencv/README +++ /dev/null @@ -1,79 +0,0 @@ -OpenCV (Open Source Computer Vision Library) is an open source -computer vision and machine learning software library. -OpenCV was built to provide a common infrastructure for -computer vision applications and to accelerate the use of -machine perception in commercial products. - -This SlackBuild is incompatible with the opencv-legacy SlackBuild -so they should not be installed simultaneously. - -OpenCV will incorporate features from a wide range of additional -software that may exist on the host system at build time. The more -of the relevant software packages that are available, the greater -the feature set available in the resulting OpenCV package. The -additional optional packages will mostly be autodetected and used -at build time without any user intervention. Packages that are -processed in this way include (by SBo package name): - libdc1394 ffmpeg hdf5 VTK libwebp tesseract glog - apache-ant numpy OpenBLAS openjdk8 (or openjdk or jdk) - -In the unlikely situation that features from these packages are not -wanted despite already being installed on the host system, -incorporation of some of them into OpenCV may be suppressed by setting -the appropriate environment variable to "no" e.g. - CVFFMPEG=no sh ./opencv.SlackBuild -Features that may be excluded in this manner are controlled by the -following environment variables: - CV1394 CVFFMPEG CVVTK - -At least one optional package is not autodetected, even though the -necessary prerequisite software may already have been installed. It -must therefore be explicitly enabled by setting the appropriate -environment variable: - CVGDAL=yes ./opencv.SlackBuild -(to support SBo's gis/gdal) - -Access to patented algorithms e.g.SIFT/SURF may be enabled by setting -the CVNONFREE environment variable: - CVNONFREE=yes ./opencv.SlackBuild - -Please note that some combinations of options may not be possible. In -particular, if both qt5 and VTK are installed on the host build system, -VTK support will be disabled unless it was built with qt5 support (which -is possible but not its default). Conversely, if VTK has been built with -qt5, it will be disabled in OpenCV unless it too is being built with qt5. - -Since opencv version 4.1.1, Qt5 is the required widget framework -(Qt4 is insufficient). Therefore qt5 is now a required dependency, -although this may be bypassed (with reduced functionality) by setting -the CVQT5 environment variable e.g. - CVQT5=no sh ./opencv.SlackBuild - -This package is configured to generate python bindings for Python 3 (via -dependency on the numpy3 package). If bindings for Python 2 are required, -the numpy package is required when building opencv. - -The Extra 2D Features Framework from OpenCV's "extra modules" section -is disabled by default as it entails additional downloading during -the configure stage of building. It may be enabled by setting the XF2D -environment variable when building e.g. - XF2D=yes sh ./opencv.SlackBuild -Usually, this also applies to the Deep Neural Network (DNN) module -however it is no longer possible to complete a build without without -it and therefore remains enabled by default. - -The face recognition module is enabled by default. This incurs an additional -download of the face_landmark_model.dat file (~70M) from OpenCV's github -repository during configuration. If this is not desired, the face module -can be disabled by setting OCV_FACE environment variable to "no" -e.g. - OCV_FACE=no sh ./opencv.SlackBuild - -Documentation is generated by the SlackBuild unless it is switched off -by setting the CVDOCS environment variable i.e. - CVDOCS=no sh ./opencv.SlackBuild -Enabling the documentation results in additional downloading of example data -during the configure stage of building. - -The graphviz package is an optional dependency for enhanced -documentation. |