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  • License
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  • Created about 3 years ago
  • Updated about 1 year ago

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Repository Details

Take a photo of food and learn about it.

Nutrify - take a photo of food and learn about it

Note: Nutrify is a work in progress. Expect plenty of errors and bugs.

Updates

  • 18 Jan 2023 - Wrote a blog post and made a YouTube video about Nutrify's data engine (the driving force behind making the FoodVision model better)

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What's the goal?

To build a PokΓ©dex for food!

To do so, we're going to need lots of food images...

You can start uploading/labelling your food images via Nutrify's Food Image Collector app.

Streaming progress on Twitch/making videos about it on YouTube.

End goal: take a photo of food an learn about it (nutrition information, where it's from, recipes, etc).

Something like this (a data flywheel/engine for food images):

Status: making a small application to collect large amounts of food images.

What's in this repo?

TODO: document this better (will likely do a big refactor once the data engine for classification is fleshed out)

  • images/ - folder with misc images for the project
  • data_exploration/ - notebooks & data exploring the USDA FoodData Central data (this has info about the nutrition content of foods)
  • food_image_collector.py - Streamlit-powered app that collects photos and uploads them to a Google Storage bucket and stores metadata in Google Sheets (these are private), see the workflow below.
  • save_to_gsheets.py - Small utility script that saves a bunch of metadata about an uploaded image to a Google Sheet (this will likely move into a dedicated utils/ folder later on.
  • utils.py - Series of helper functions used in food_image_collector.py, for example, upload_blod(), a function that uploads a photo to Google Storage.
  • requirements.txt - A text file with the dependency requirements for this project.

Image uploading workflow

The script food_image_collector.py is currently hosted using Streamlit Cloud. It does this:

Master plan

As of: 15 March 2022

Note: this is very likely to change.

Stage 1 (done)

Build food image collection app, need a way to store images at large scale, images: object storage (Google Storage), info about images: relational database (PostgreSQL).

Stage 2 (done, see: https://github.com/mrdbourke/nutrify/releases/tag/v0.1.3)

Build small prototype computer vision app to take a photo of ~100 different types of foods and return back their nutrition information (this'll be done via a public nutrition API, if you know of one, please let me know).

Stage 3 (up to here)

Merge inputs to stage 1 and stage 2 into a database (start linking together the data flywheel, more images get taken, models get improved, more images, better models, more images, better models, etc).

Stage 4

Upgrade stage 1, 2, 3 to work with world's 100 most commonly eaten foods (start with top of the Pareto curve and then start working backwards towards the tail).

Stage 5

Repeat the above until almost every food you can eat is covered.

Log

  • 18 Jan 2022 - Nutrify iOS app well on the way, data engine for image classification well under way, full code coming soon
  • 14 Mar 2022 - added macronutrient details for ~100 foods, see release notes
  • 17 Jan 2022 - cleaned up the data by removing duplicates/fixing some low performing classes (see the update comment)
  • 14 Jan 2022 - Nutrify can now identify 100 foods (see release notes)
  • 22 Dec 2021 - Nutrify can now identify 78 foods

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