Object Detection in the Cloud

I am new to Image Processing. My goal is to detect round objects on the server side. Currently, i am trying to find the right technology in order to implement this tutorial in the cloud (i use Heroku because it has free package).

I decided to investigate the abilities of NodeJS + OpenCV + Heroku, however, i saw that OpenCV addon for NodeJS lacks documentation and it is complicated to deploy it on Heroku.

Should i use any other technology instead of NodeJS (e.g. Python)?

via Max Z