Use OpenCV on deployed Flask app (Heroku)

Question

Hello I seem to be having trouble importing opencv on my deployed flask app on Heroku!

I've referred to similar posts such as this this "ImportError: libSM.so.6: cannot open shared object file: No such file or directory " but can't seem to figure out the next steps on windows.

This is what I've done so far:
1. gone to Heroku -> App -> Settings -> Buildpacks -> added Python buildpack
2. Added a Aptfile.txt to my directory with the following packages on each line (read this somewhere not sure if it makes any sense)

libsm6 , libxrender1 ,libfontconfig1, libice6

Notes:

My openCV version-- opencv-python==3.4.3.18
I'm on windows so the sudo commands recommended in the other post answers dont work

Thanks in advance!

Mamun · Accepted Answer · 2019-02-07 19:02:38Z

8

Use opencv-python-headless it's out of libSM6 dependency.

pip install opencv-python-headless

answered Feb 7, 2019 at 19:02

Mamun

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Abdelrahman Badr · Accepted Answer · 2020-04-03 03:52:11Z

3

put this line in requirments.txt

opencv-python-headless==4.2.0.32

answered Apr 3, 2020 at 3:52

Abdelrahman Badr

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