I need to recognise numbers from the camera image on iPhone, in real-time. I know there will be no more than 5 digits on the image.
Is this problem realistic to solve gi
Yes. Bender can help you with that. It lets you build and run neural nets on iOS. As it uses Metal under the hood, it runs fast and smooth. It also supports running TensorFlow models directly.
So you can run in Bender an existing model in TensorFlow trained for digit recognition Handwritten Digit Recognition using Convolutional Neural Networks in Python with Keras if you need help
Disclaimer: I worked on this project.