As a beginner question, I need to do some intensive image processing calculations for my app but it's obvious the app can't handle it by itself. Is there a suggested way to delegate heavy operations on the application server side in Android , considering I will need to use Firebase for the db - webservice operations by the way? Thank you
If you want to have certain computationally heavy operations that you don't want to run in the app, you could consider running them in Cloud Functions for Firebase. There is even an example of generating thumbnails of images this way.
You could also run the operations on your own server, in which case you'll integrate with Firebase through its Admin SDK. This SDK gives your server full administrative access to the Firebase project, so it can do both regular operations and things that require elevated access permissions.