在已部署的 Flask 应用程序 (Heroku) 上使用 OpenCV

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!

Answer 1

使用 opencv-python-headless 它不依赖于 libSM6。

pip install opencv-python-headless

Answer 2

put this line in requirments.txt

opencv-python-headless==4.2.0.32