OpenCV not working properly with python on Linux with anaconda. Getting error that cv2.imshow() is n
エラーメッセージ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 libgtk 2.0-dev and pkg-config,then re-run cmake or configure script)in cvShowImage,file/feedstock_root/build_artefacts/work/opencv-3.1.0/modules/highgui/src/window.cpp, line 545 Traceback (most recent call last): File “untitled.py”, line 7, in cv2.imshow(‘image’,img) cv2.error:/feedstock_root/build_artefacts/work/opencv-3.1.0/modules/highgui/src/window.cpp:545: 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 cvShowImage
リファレンスhttps://stackoverflow.com/questions/40207011/opencv-not-working-properly-with-python-on-linux-with-anaconda-getting-error-th?rq=1解決策(私が最初の方法で解決した)
1.The easiest way:
or (for OpenCV 3.1) :
2.And if u don’t want to do this, you can try to use matplotlib .
3.Or try to build library by your own with option WITH_GTK=ON , or smth like that.
Update - 18th Jun 2019
I got this error on my Ubuntu(18.04.1 LTS) system for openCV 3.4.2, as the method call to cv2.imshow was failing. I am using anaconda. Just the below 2 steps helped me resolve:
If you are using pip, you can try
問題の要約
cv2.VideoCapture not working
リファレンスhttps://stackoverflow.com/questions/47112642/permanent-fix-for-opencv-videocapture OpenCV FFMPEG support: By default OpenCV uses ffmpeg to read video files. OpenCV may not have been built with FFMPEG support. To find out if OpenCV was built with FFMPEG support, in terminal enter:
python -c “import cv2; print(cv2.getBuildInformation())” | grep -i ffmpeg The output should be something like:
FFMPEG: YES
If the output is No then follow an online guide to build OpenCV from source with ffmpeg support. py 36環境でのopencvバージョンは3.1.0 anaconda-navigatorで古いバージョンをアンインストールして3.4.2バージョンにアップグレードすると次のエラーが発生します.
error: OpenCV(3.4.2)/tmp/build/80754af9/opencv-suite_1535558553474/work/modules/highgui/src/window.cpp:626: error: (-2: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 function ‘cvDestroyAllWindows’
ブログによるとhttps://blog.csdn.net/fdd096030079/article/details/81156811このサイトを通じてhttps://pypi.org/project/opencv-python/3.4.2.17/
Opencvのインストール
リファレンスhttps://stackoverflow.com/questions/40207011/opencv-not-working-properly-with-python-on-linux-with-anaconda-getting-error-th?rq=1解決策(私が最初の方法で解決した)
1.The easiest way:
conda remove opencv
conda update conda
conda install --channel menpo opencv
or (for OpenCV 3.1) :
conda install -c menpo opencv3
2.And if u don’t want to do this, you can try to use matplotlib .
import cv2
import matplotlib.pyplot as plt
img = cv2.imread('img.jpg',0)
plt.imshow(img, cmap='gray')
plt.show()
3.Or try to build library by your own with option WITH_GTK=ON , or smth like that.
Update - 18th Jun 2019
I got this error on my Ubuntu(18.04.1 LTS) system for openCV 3.4.2, as the method call to cv2.imshow was failing. I am using anaconda. Just the below 2 steps helped me resolve:
conda remove opencv
conda install -c conda-forge opencv=4.1.0
If you are using pip, you can try
pip install opencv-contrib-python
問題の要約
cv2.VideoCapture not working
リファレンスhttps://stackoverflow.com/questions/47112642/permanent-fix-for-opencv-videocapture OpenCV FFMPEG support: By default OpenCV uses ffmpeg to read video files. OpenCV may not have been built with FFMPEG support. To find out if OpenCV was built with FFMPEG support, in terminal enter:
python -c “import cv2; print(cv2.getBuildInformation())” | grep -i ffmpeg The output should be something like:
FFMPEG: YES
If the output is No then follow an online guide to build OpenCV from source with ffmpeg support. py 36環境でのopencvバージョンは3.1.0 anaconda-navigatorで古いバージョンをアンインストールして3.4.2バージョンにアップグレードすると次のエラーが発生します.
error: OpenCV(3.4.2)/tmp/build/80754af9/opencv-suite_1535558553474/work/modules/highgui/src/window.cpp:626: error: (-2: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 function ‘cvDestroyAllWindows’
ブログによるとhttps://blog.csdn.net/fdd096030079/article/details/81156811このサイトを通じてhttps://pypi.org/project/opencv-python/3.4.2.17/
pip install opencv-python==3.4.2.17
Opencvのインストール