It gives this error:
error Traceback (most recent call last)
<ipython-input-6-5e400e6b9939> in <module>()
1 img = cv2.imread(imgpath)
2
----> 3 cv2.namedWindow('Lena', cv2.WINDOW_AUTOSIZE)
4 cv2.imshow('Lena', img)
5 cv2.waitKey(0)
error: /tmp/build/80754af9/opencv_1512687413662/work/modules/highgui/src/window.cpp:593: error: (-2) 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 function cvNamedWindow
I installed this package using conda so unable to understand how to make changes in that.
Seems to be an issue with your opencv, from the error my assumption is you built it from source.
l would advise uninstalling the current opencv you have and install via pip pip install opencv-python
Related
I'm trying to install Opencv 3.2.0 and Nvidia CUDA toolkit 8.0 on Ubuntu 16.04 but I can't configure them together. I get the following error when I try to make project using both:
CMake Error at /usr/share/cmake-3.5/Modules/FindPackageHandleStandardArgs.cmake:148 (message):
Could NOT find CUDA: Found unsuitable version "8.0", but required is exact
version "7.5" (found /usr/local/cuda)
Call Stack (most recent call first):
/usr/share/cmake-3.5/Modules/FindPackageHandleStandardArgs.cmake:386 (_FPHSA_FAILURE_MESSAGE)
/usr/share/cmake-3.5/Modules/FindCUDA.cmake:949 (find_package_handle_standard_args)
/usr/local/share/OpenCV/OpenCVConfig.cmake:86 (find_package)
/usr/local/share/OpenCV/OpenCVConfig.cmake:105 (find_host_package)
CMakeLists.txt:10 (find_package)
-- Configuring incomplete, errors occurred!
I have tried installing cuda toolkit 7.5 but its not compatible with ubuntu 16.04 I believe. I'm really clueless now, I hope someone can help with this.
Thanks
so I solved this issue by managing to install toolkit 7.5. Here is how I did it:
Updated nvidia driver for my Operating System
Download cuda toolkit 7.5 and extract it to a folder
$ mkdir ~/Downloads/NVIDIA_TOOLKIT
$ cd ~/Downloads
$ ./cuda_7.5.18_linux.run -extract=~/Downloads/NVIDIA_TOOLKIT;
go to the virtual console by pressing Ctrl + Alt + F1 and turn off
lightdm service
$ sudo service lightdm stop
cd to downloads and install the extracted toolkit and samples
$ cd ~/Downloads/NVIDIA_TOOLKIT
$ sudo ./cuda-linux64-rel-6.0.37-18176142.run
$ sudo ./cuda-samples-linux-6.0.37-18176142.run
Set environment variables in .bashrc file
$ PATH=/usr/local/cuda-7.5/bin
$ LD_LIBRARY_PATH=/usr/local/cuda-7.5/lib64
Turn back on the lightdm service
$ sudo service lightdm start
Reboot and you should be able to use the nvcc compiler
For openCV you will have to downgrade your gcc/ g++ compiler to 4.9 since it is not yet compatible with the higher versions
I am working with opencv libraries. When I run my project, I get following 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/krathi/softwaresetup/opencv-2.4.9/modules/highgui/src/window.cpp, line 483
terminate called after throwing an instance of 'cv::Exception'
what(): /home/krathi/softwaresetup/opencv-2.4.9/modules/highgui/src/window.cpp:483: error: (-2) 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 function cvNamedWindow
When I go to terminal and type "type pkg-config" I get this:
pkg-config is hashed (/usr/bin/pkg-config)
I dont know what this means , but I guess that the access to pkg-config is only to the admin user of my machine. Am I right?
What should I do to fix this error ? Specifically what should I do so that my program can use pkg-config.
Note :I have installed libgtk
You probably have compiled OpenCV by yourself looking at the folders given in the error message. You need to recompile OpenCV by setting WITH_GTK=ON using cmake.
I installed opencv 2.3.1 and when I execute samples by running the command ./delaunay on the terminal, I got errors as follows:
This program builds the traingulation interactively, you may stop this process by
hitting any key.
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/pi/OpenCV-2.3.1/modules/highgui/src/window.cpp, line 275 terminate called after throwing an instance of 'cv::Exception'
what(): /home/pi/OpenCV-2.3.1/modules/highgui/src/window.cpp:275: error: (-2) 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 function cvNamedWindow
Aborted
What is the solution?
I get the following 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/robik/Downloads/Java/OpenCV-2.3.1/modules/highgui/src/window.cpp, line 275
terminate called after throwing an instance of 'cv::Exception'
what(): /home/robik/Downloads/Java/OpenCV-2.3.1/modules/highgui/src/window.cpp:275: error: (-2) 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 function cvNamedWindow
Aborted
libgtk2.0-dev and pkg-config both are installed but I still get the error. What is wrong?
I followed the steps at http://www.samontab.com/web/2011/06/...-ubuntu-11-04/
still doesn't help.
I installed open cv in my ubuntu 11.04. But whenever I try to run any code I get the following 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/robik/Downloads/Java/OpenCV-2.3.1/modules/highgui/src/window.cpp, line 275
terminate called after throwing an instance of 'cv::Exception'
what(): /home/robik/Downloads/Java/OpenCV-2.3.1/modules/highgui/src/window.cpp:275: error: (-2) 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 function cvNamedWindow
I already have libgtk2.0-dev and pkg-config in my OS. What should I do?
re configure and then re-run cmake. checkout this tutorial