This is an app that replicates effect of scanning your image in a photostat machine to get a black and white photo.
It is useful if you use it for receipt images.
Run below command to start the app.
streamlit run app.py
If you changed your script name to deploy.py just replace it to streamlit run deploy.py
Advice to try this out in a fresh new anaconda environment
conda create -n your_env python=3.7
conda activate your_env
pip install streamlit
pip install opencv-python