This is a 'OpenCV with GTK+ 3' application that load and display image.
Linking this software to 'OpenCV with Qt' library is deprecated.
Note:
- There are some problems in OpenCV (OpenCV with Qt) library on the Fedora repository. See simple C++ OpenCV imshow example crashes with segmentation fault.
- How to build 'OpenCV with GTK+ 3' library is here ...
Some of usages of this command are shown below.
How to display help:
$ test-cplusplus --help
Usage: test-cplusplus [OPTION] FILE
Load and display image
OPTION:
--disptime=msec Display time (1~2147483647)
--single Prevent double startup of this program
--cvinfo Display OpenCV build information and exit
--msginfo Display message catalog information and exit
--help Display this help and exit
--version Display version information and exit
URL:
Report bugs to: https://github.com/kimkim19642004/test-cplusplus-autotools/issues
How to know supported image formats:
$ test-cplusplus --cvinfo | awk '/Media I\/O:/,/^$/'
Media I/O:
ZLib: /lib64/libz.so (ver 1.2.11)
JPEG: /lib64/libjpeg.so (ver )
WEBP: /lib64/libwebp.so (ver encoder: 0x020e)
PNG: /lib64/libpng.so (ver 1.6.34)
TIFF: /lib64/libtiff.so (ver 42 / 4.0.9)
JPEG 2000: /lib64/libjasper.so (ver 2.0.14)
OpenEXR: /lib64/libImath.so /lib64/libIlmImf.so /lib64/libIex.so /lib64/libHalf.so /lib64/libIlmThread.so (ver 2.2.0)
GDAL: YES (/lib64/libgdal.so)
GDCM: YES (ver 2.8.4)
How to know supported GUI libraries:
$ test-cplusplus --cvinfo | awk '/GUI:/,/^$/'
GUI:
GTK+: YES (ver 3.22.30)
GThread : YES (ver 2.56.1)
GtkGlExt: NO
OpenGL support: NO
VTK support: NO
How to load and display image:
$ test-cplusplus tests/kingfisher-1905255_640.jpg
These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See Deployment for notes on how to deploy the project on a live system.
Install necessary packages for installing this software.
When the latest version of Fedora is clean installed:
$ sudo dnf install dnf-plugins-extras-tracer
$ sudo dnf upgrade
Follow instructions of the DNF command, restart the specified applications, or reboot your system, or login to your system again.
Note:
- If Plugin for DNF command dnf-plugins-extras-tracer is installed on your system, the DNF command will display information about running applications that need to be restarted. This plugin is useful, but it may take time to execute. To disable this plugin, specify '--disableplugin=tracer' as the command option.
Install Development Tools:
$ sudo dnf groupinstall "C Development Tools and Libraries"
$ sudo dnf install autoconf-archive gettext-devel bats
$ sudo dnf install openssl-devel gtk3-devel
When using the development tools in Japanese:
$ echo $LANG
ja_JP.UTF-8
$ sudo dnf install glibc-langpack-ja man-pages-ja
Install language packages that match your locale.
Add user 'mockbuild' as a normal user (non-root user) to build your own RPM packages:
$ sudo useradd mockbuild
$ sudo passwd mockbuild
Login as user 'mockbuild' and do the following:
$ cd $HOME
$ dnf download --source opencv (or download the latest SRPM pakage from 'http://rpmfind.net/linux/rpm2html/search.php?query=opencv')
$ rpm -ivh opencv-3.4.1-3.fc28.src.rpm
$ gedit rpmbuild/SPECS/opencv.spec
Rewrite the following parts of file 'opencv.spec':
(line 254: before) -DWITH_QT=ON \
(line 254: after ) -DWITH_QT=OFF \
(line 329: before) %{_libdir}/libopencv_cvv.so.%{abiver}*
(line 329: after ) #{_libdir}/libopencv_cvv.so.%{abiver}*
Then do the following:
$ rpmbuild -bb --clean rpmbuild/SPECS/opencv.spec
You should see a lot of error messages indicating that packages necessary for build are not installed. Login as a user(administrator) who is not user 'mockbuild', and install those packages using DNF command.
Follow instructions of the DNF command, restart the specified applications, or reboot your system, or login to your system again.
And then, Login as user 'mockbuild' and do the following again:
$ rpmbuild -bb --clean rpmbuild/SPECS/opencv.spec
If the build succeeds, there should be 13 files below under subdirectories of $HOME/rpmbuild/RPMS:
opencv-3.4.1-3.fc28.x86_64.rpm
opencv-contrib-3.4.1-3.fc28.x86_64.rpm
opencv-contrib-debuginfo-3.4.1-3.fc28.x86_64.rpm
opencv-core-3.4.1-3.fc28.x86_64.rpm
opencv-core-debuginfo-3.4.1-3.fc28.x86_64.rpm
opencv-debuginfo-3.4.1-3.fc28.x86_64.rpm
opencv-debugsource-3.4.1-3.fc28.x86_64.rpm
opencv-devel-3.4.1-3.fc28.x86_64.rpm
opencv-devel-docs-3.4.1-3.fc28.noarch.rpm
opencv-python3-3.4.1-3.fc28.x86_64.rpm
opencv-python3-debuginfo-3.4.1-3.fc28.x86_64.rpm
python2-opencv-3.4.1-3.fc28.x86_64.rpm
python2-opencv-debuginfo-3.4.1-3.fc28.x86_64.rpm
Keep a copy of these files on removable media.
Finally, login as administrator and install using DNF command:
$ cd $HOME/opencv-3.4.1-3.fc28.x86_64 <-- Directory where your own RPM packages are stored
$ sudo dnf install ./*
Note:
- Do not execute command 'sudo dnf install opencv'. When you execute the command, the RPM packages will be downloaded from the Fedora repository.
Follow instructions of the DNF command, restart the specified applications, or reboot your system, or login to your system again.
The installation procedure of this software is as follows:
$ cd $HOME
$ git clone https://github.com/kimkim19642004/test-cplusplus-autotools.git
$ cd test-cplusplus-autotools
$ ./configure && make
$ make check
$ sudo make install
$ make installcheck
Note:
- See 'INSTALL' for more information.
We use SemVer for versioning. For the versions available, see po2bats-autotools.
See 'AUTHORS' for more information.
See 'COPYING' for more information.
This is the latest information on development environment. See 'NEWS' for more information.