I have added meta-openembedded recipes in the Yocto project, at Jethro branch OpenCV version is 2.4.
After building while testing the sample applications provided by opencv-samples_2.4.bb gives these samples :
adaptiveskindetector contours facedetect find_obj_calonder morphology mushroom pyramid_segmentation
bgfg_codebook convert_cascade fback_c find_obj_ferns motempl one_way_sample smiledetect
blobtrack_sample delaunay find_obj latentsvmdetect mser_sample polar_transforms tree_engine
but while testing I got this error :
OpenCV Error: Unspecified error (The function is not implemented.
Rebuild the library with Windows, GTK+ 2.x or Carbon support. If you
are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then
re-run cmake or configure script) in cvNamedWindow, file
/home/ymj/opencv/modules/highgui/src/window.cpp, line 516
I have added in local.conf:
IMAGE_INSTALL_append += " opencv opencv-samples python-opencv"
Is anything more needed to get full-fledged opencv operations.
Related
I am trying to run object detection algorithm (which is using OpenCV 2.4.13.7) on H3ULCB. It is giving libGTK as shown below
root#h3ulcb:/media/2.4.13_algo_target_# ./main_
OpenCV Error: Unspecified error (The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or [ 1976.641753] audit: type=1706
Carbon support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script) in cvWaitKey, fil7
terminate called after throwing an instance of 'cv::Exception'
what(): /media/2.4.13.7_pckage/modules/highgui/src/window.cpp:567: error: (-2) The function is not implemented. Rebuild the library with Wiy
Aborted (core dumped)}
To solve the error , I tried to install libGTK package (libgtk2.0-dev_2.24.31-2_arm64.deb) on H3ULCB, but its not getting installed to the target.
* pkg_extract_data_file_names_to_stream: Failed to extract data.tar.gz from package '/media/libgtk2.0-dev_2.24.31-2_arm64.deb'.
* pkg_get_installed_files: Error extracting file list from /media/libgtk2.0-dev_2.24.31-2_arm64.deb.
* opkg_install: Cannot install package libgtk2.0-dev.
BSP and SDK for H3ULCB are build using yocto, details are listed below:
Yocto version: 2.23
Poky: 2.1.3
The same error is resolved on the native Linux (Ubuntu16.04) by installing the libgtk2.0 library from apt-get manager. But package manager apt and dpkg is not getting installed on the target. I tried to add these managers in the yocto layers while building the image.
Currently Available package manager on H3ULCB is OPKG. Since OPKG works on .IPK packages but not .IPK packages on available for libgtk2.0, I have converted the .deb package to a .IPK package .While executing the .IPK package on H3ulcb:
root#h3ulcb:/media# opkg install libgtk2.0-dev_2.24.31-2_arm64.ipk
Collected errors:
* open_outer: Failed to open package 'libgtk2.0-dev_2.24.31-2_arm64.ipk': Unrecognized archive format
* pkg_extract_control_file_to_stream: Failed to extract control.tar.gz from package 'libgtk2.0-dev_2.24.31-2_arm64.ipk'.
* pkg_init_from_file: Failed to extract control file from libgtk2.0-dev_2.24.31-2_arm64.ipk.
In the package libgtk2.0-dev_2.24.31-2_arm64.deb, there are 3 files
control.tar.gz
data.tar.xz
debian-binary
while executing the .deb file on H3ULCB, the error showed data.tar.gz instead of data.tar.xz as given below:
pkg_extract_data_file_names_to_stream: Failed to extract data.tar.gz from package '/media/libgtk2.0-dev_2.24.31-2_arm64.deb'.
I have converted data.tar.xz to data.tar.gz, but how to pack these files 3 files back to .deb package?
I am trying to build OpenCV from Source (master branch) using cmake.
I installed Eigen package via apt-get.
sudo apt-get install libeigen3-dev
It was successfully installed, and cmake prints that eigen 3.3.4 is installed.
Eigen: YES(ver 3.3.4)
But when I did 'make', it showed the error
/opencv/modules/core/include/opencv2/core/private.hpp:66.12: fatal error: Eigen/Core: No such file or directory
# include <Eigen/Core>
^~~~~~~~~~~~
compilation teminated.
I found the same question on superuser.
So as the answer did, I have changed cmake/OpenCVFindLibsPerf.cmake from line 44 to 59.
After I have commented out line 46-48 and 59,
and changed find_package(Eigen3 QUIET) in line 44 to find_package(Eigen3 3.0.0), it works.
And this problem only happens on OpenCV 4.0 version.
When I install OpenCV 3.4.6 version(tag 3.4.6 on github), this problem does not occur.
In opencv compilation, we need gtk. I have gtk-2.0 and gtk-3.0 installed.
This command gave me
dpkg -l libgtk2.0-0 libgtk-3-0
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-============-============-=================================
ii libgtk-3-0:amd 3.10.8-0ubun amd64 GTK+ graphical user interface lib
ii libgtk2.0-0:am 2.24.23-0ubu amd64 GTK+ graphical user interface lib
ii libgtk2.0-0:i3 2.24.23-0ubu i386 GTK+ graphical user interface lib
I have gtk-2.0 and gtk-3.0 folder inside /usr/include/.
They exist as /usr/include/gtk-2.0 and /usr/include/gtk-3.0
But my compilation for opencv gave me error as
src/window_gtk.cpp:48:21: fatal error: gtk/gtk.h: No such file or directory
#include "gtk/gtk.h"
^
compilation terminated.
I have gtk/gtk.h inside both gtk-2.0 and gtk-3.0 folders.
What could be wrong?
First, use brackets instead of double quotes searches in your include if that's not a file that belongs to your project, but a third-party one.
We also need to know which version of opencv you're trying to compile. OpenCV 2.x support GTK+ 2 only, whereas OpenCV 3.x support GTK+ 3.
We also need how you call cmake when you configure the OpenCV project, so please add the command line and the logs of that call too.
This will help determine the arguments given to the compiler, to check it uses the right include locations, and also check that it's trying to use the GTK+ backend and not the Qt one for example.
I tried to install cv library via cabal (cabal install cv).
But it brings me up an error:
Configuring CV-0.3.7...
Building CV-0.3.7...
Preprocessing library CV-0.3.7...
c2hs: C header contains errors:
dist/build/CV/Video.chs.h:22: (column 39) [ERROR] >>> Unknown identifier!
Cannot find a definition for `CV_CAP_PROP_WHITE_BALANCE_BLUE_U' in the header file.
cabal: Error: some packages failed to install:
CV-0.3.7 failed during the building phase. The exception was:
ExitFailure 1
I have read that it's problem is, that my install opencv is newer than the haskell-library needs it.
My opencv:
local/opencv 2.4.12.2-2
Open Source Computer Vision Library
So how can I fix this error now? Thanks for your help!
Recently I am trying to build OpenCV with CUDA support, and I met problem while building the module cudaarithm.
OpenCV source: git cloned from : http://github.com/Itseez/opencv.git
OpenCV branch: master branch
OpenCV commit:
`commit 5466e321b8c8f97536002a357e5b7ff49a5d2bf9, on Tue Feb 10 12:17:11 2015 +0000`
CUDA version: CUDA 6.5
Hardware: MacBook Pro (13-inch, Mid 2010)
GPU: NVIDIA GeForce 320M 256 MB
OS Version: OS X Yosemite
Steps I used:
1. cd in OpenCVSource, then mkdir myrelease, and cd myrelease
2. cmake -DPLANTUML_JAR=/usr/local/Cellar/plantuml/8002 -D BUILD_DOCS=1 -DPYTHON2_LIBRARY=/usr/local/Cellar/python/2.7.8_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/config/libpython2.7.dylib -DPYTHON2_INCLUDE_DIR=/usr/local/Cellar/python/2.7.8_2/Frameworks/Python.framework/Versions/2.7/include/python2.7 -DPYTHON3_LIBRARY=/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/libpython3.4m.dylib -DPYTHON3_INCLUDE_DIR=/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/include/python3.4m -D CMAKE_BUILD_TYPE=RELEASE -DCMAKE_INSTALL_PREFIX=/usr/local -Wno-dev -DNVCC_FLAGS_EXTRA="-Xcompiler -stdlib=libstdc++; -Xlinker -stdlib=libstdc++" -DOPENCV_EXTRA_CXX_FLAGS=" -stdlib=libstdc++" -DOPENCV_EXTRA_EXE_LINKER_FLAGS="-stdlib=libstdc++" ..
3. make VERBOSE=1
Expect Result: Building success without error
Actual Result: when building OpenCVSource/modules/cudaarithm/src/cuda/transpose.cu, error happend like below:
/Users/Hawk/Documents/study/DIP/OpenCV/OpenCVSource/modules/cudaarithm/src/cuda/transpose.cu(61): *error: identifier "getInputMat" is undefined*
/Users/Hawk/Documents/study/DIP/OpenCV/OpenCVSource/modules/cudaarithm/src/cuda/transpose.cu(67): *error: identifier "getOutputMat" is undefined*
/Users/Hawk/Documents/study/DIP/OpenCV/OpenCVSource/modules/cudaarithm/src/cuda/transpose.cu(92): *error: identifier "syncOutput" is undefined*
Then what action I take:
check the code and I found these undefined symboles are defined in OpenCVSource/modules/core/include/opencv2/core/private.cuda.hpp
check the code and I confrim that the "transpose.cu" file include "opencv2/core/private.cuda.hpp"
check the building log, and I the confirm the private.cuda.hpp is in the search path of header file
cp "opencv2/core/private.cuda.hpp" as another file "opencv2/core/hawk.hpp", and then edit "transpose.cu" to include this new file, and I found
the "undifined symbole error" disapeared.
Although this is a workable workaround, I would like know whether the original OpenCV source cannot be compiled.
All, I think I found the problem cause.
Before I met such problem, I've already build and install OpenCV using older code from the git repo. So that there already have header files in my /usr/local/include/opencv2, especially there is /usr/local/include/opencv2/core/private.cuda.hpp.
However, it is an older one that doesn't define the symbols reporting undefined in above question. At the same time I found during the building nvcc have -I/usr/local/include in the command line, so that it use wrong private.cuda.hpp. As you know it should use the one in OpenCVSource, not the older installed one.
I think the solution is to gracefully remove the original installed OpenCV from my computer, then build again. I am trying and I will report later.