Dear Shaimaa Muhammad, the best way to use cv2 library is to download a binary file ready to work in Windows for your python version.

Binary files for Windows are available in this website:

https://www.lfd.uci.edu/~gohlke/pythonlibs/

You should go to the OpenCV part and download the binary by your python version

and your OS architecture.

Let's suppose you have:

Python version 3.6

Windows x64

Then, you should download (either a or b):

a) opencv_python‑3.4.2‑cp36‑cp36m‑win_amd64.whl

b)

opencv_python‑3.4.2+contrib‑cp36‑cp36m‑win_amd64.whl

Then in a command prompt console or you should type (a or b):

a) pip install file_path/opencv_python‑3.4.2‑cp36‑cp36m‑win_amd64.whl

b) pip install file_path/opencv_python‑3.4.2+contrib‑cp36‑cp36m‑win_amd64.whl

where file_path is the path of the folder where the *.whl file was downloaded.

OBS: If you have an anaconda prompt, use it instead the common Windows prompt.

David Hernandez Unfortunately, the error still exists. I did all the steps and I had already installed OpenCV and numpy before. I think I'm having a conflict issue but I don't know how to solve it.

Dear Shaimaa Muhammad, please follow the steps of the attached video. If you have problems with this installation I recommend to uninstall and re-install the anaconda. Then follow, again, the steps in the video.

After install in the Anaconda Prompt, the cv2 library will be available in all python ecosystem, like Jupyter, Nteract, Spyder, or third party IDES like PyCharm, Sublime, etc.

Let me know If I can help you in anymore.

You can also download the video from my personal drive:

https://1drv.ms/v/s!AgrqfX4B7PFhiYoxxwLR-Y1VdWHCTw

David Hernandez Yeah .. Finally it worked. Thanks alot :)

I have the same problem with opencv, can you (David) share the video with me? I've been tried dowloading the video but is not available.

Regards

Sure @Paulo_Ricardo_Nunes_da_Conceição, the attached file is the video in MP4 format. If you have problems in the reproduction, please use the VLC player either for PC or mobile reproduction.

Its good it worked, but i faced some " DLL load failed” when import cv2 (opencv)" when trying to import cv2. I tried many different solution but did not work for me.After few our of search it turned out to be a window related issue for windows N distributions which does not come with window media feature pack. You can download it from "https://www.microsoft.com/en-us/software-download/mediafeaturepack" and install it. Hope it will help.

Hello Mr. David Hernandez , I have the same problem with opencv2, can you plz share the video with me? I've been tried downloading the video but is it not available

Dear @ABU BAKAR SIDDIQUE here is the file for download. Let me know If you need anything else.

Hi Burhan Rashid Hussein

Could you please let me know whether DLL error was solved after installing that package for you?I encountered the same issue after installing opencv and importing cv2 and spent almost two weeks figuring out the issue but had no luck

Hi Ranjana Ajayakumar yes the installation of the package worked for me. Check the link from my previous comment

Dear David Hernandez

I followed your video protocol, but still I have issue with opening cv2 in Spyder, however I have access to cv2 in Pycharm.

would you assist in this matter?

thanks a lot

Did you install cv2 directly from conda (Anaconda) environment?

Estimado @Yandy_Rodrigez_Cueto2 no es necessário importar/instalar desde los repositórios de Anaconda. Puedes usar el archivo binário wheel (*.whl) directamente:

https://www.researchgate.net/profile/David_Hernandez22/post/How_to_import_cv2_into_anaconda_spyder_Python_36/attachment/5c77b435cfe4a781a5840696/AS%3A731223752179712%401551348736219/download/20180810_0812_120.mp4

Link directo para los archivos whl:

https://www.lfd.uci.edu/~gohlke/pythonlibs/#opencv

Hello Shaimaa.

I had the same problem before when I tried to use cv2 with Spyder. I solved it by only installing opencv through Anaconda Prompt as follows:

conda install opencv

It took some time to start, and around 15 minutes to finish. In the middle I needed to approve the downgrading of some packages with an "Y" (yes).

Now it works perfectly.