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https://github.com/jimbobbennett/hackathon-captureimageforai
A template repo to create a quick and dirty Python starter project that captures an image from a web page and send it to an AI service
https://github.com/jimbobbennett/hackathon-captureimageforai
ai azure cognitive-services flask python
Last synced: 16 days ago
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A template repo to create a quick and dirty Python starter project that captures an image from a web page and send it to an AI service
- Host: GitHub
- URL: https://github.com/jimbobbennett/hackathon-captureimageforai
- Owner: jimbobbennett
- License: mit
- Created: 2019-12-12T18:12:46.000Z (almost 5 years ago)
- Default Branch: master
- Last Pushed: 2020-12-05T00:03:10.000Z (almost 4 years ago)
- Last Synced: 2024-10-10T11:06:29.075Z (28 days ago)
- Topics: ai, azure, cognitive-services, flask, python
- Language: HTML
- Size: 12.7 KB
- Stars: 5
- Watchers: 2
- Forks: 2
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# Hackathon - Capture Image For AI
This repo provides a template for a Python/Flask app that streams images from the users webcam to a video player on an HTML page. Then when the use clicks a button, it will capture the image and POST it to a route in the Flask app.
## To use this repo
* Select the **Use this template** button at the top of the page. This will create a new GitHub repo in your account using the code from here as the basic template.
* Clone the new repo
* Open it in [Visual Studio Code](https://code.visualstudio.com/?WT.mc_id=hackathoncaptureimageforai-github-jabenn). You will need the [Python extension](https://marketplace.visualstudio.com/itemdetails?itemName=ms-python.python&WT.mc_id=hackathoncaptureimageforai-github-jabenn) installed in Visual Studio Code.
* Open the terminal and install the pip packages from the `requirements.txt` file:
```sh
pip3 install requirements.txt
```
## Running the app
THe app will contain configuration to allow you to debug it as a Flask app from inside Visual Studio Code.
## The structure of the code
* `app.py` - this file contains the Flask app. It has two routes:
* `/` - this loads the `home.html` template, passing in an empty dictionary of data
* `/process_image` - this receives the image as a JSON document containing the image as Base64 encoded data.
## Adding AI capabilities
This is a great starter project for capturing an image ready to run through AI services such as face recognition or an image classifier. To add AI capabilities:
* If you don't already have an Azure account, you will need to create one:
* Students can sign up at [aka.ms/FreeStudentAzure](https://azure.microsoft.com/free/students/?WT.mc_id=hackathoncaptureimageforai-github-jabenn) using a valid higher education email address. You won't need a credit card and will get US$100 to use for 12 months, as well as 12 months of free services. After 12 months if you are still a student you can renew for another 12 months and get another $100 and free services, and so on each year you are still a student.
* If you are not a student you can sign up at [aka.ms/FreeAz](https://azure.microsoft.com/free/?WT.mc_id=hackathoncaptureimageforai-github-jabenn). You will need a credit card to verify you are not a bot (you won't be charged anything), and wil get US$200 for 30 days, as well as 12 months of free services.
* Browse the vision based Cognitive Services on the [product page](https://azure.microsoft.com/services/cognitive-services/?WT.mc_id=hackathoncaptureimageforai-github-jabenn) and select the service you want.
* Create a resource for the service that you want. For a lot of these services you can create a single **Cognitive Services** resource and use that key for multiple services.
* Add a file called `.env` to the app to store application keys. Add key/value pairs for the endpoint and API key
* Add the relevant Python package to the `requirements.txt` file for the service you want to use, and install the packages from this file
* Add code to the `/process_image` route, replacing this comment inside the function:
```python
##############################################
# #
# Add your AI call here #
# #
##############################################
```
The code you add here should create the Cognitive Services client using the keys stored in the `.env` file, accessed as environment variables.
You can see an example of a similar app that uses the Face API to identify emotions and create a game in [this GitHub repo](https://github.com/jimbobbennett/HappySadAngryWorkshop).
## Deploying to Azure
Once your app is complete, you can deploy it to an [Azure App Service](https://azure.microsoft.com/services/app-service/?WT.mc_id=hackathoncaptureimageforai-github-jabenn). There is an [Azure App Service extension for Visual Studio Code](https://marketplace.visualstudio.com/itemdetails?itemName=ms-azuretools.vscode-azureappservice&WT.mc_id=hackathoncaptureimageforai-github-jabenn) that you can use to allow you to deploy from inside Visual Studio Code.
> Deploying apps from VS Code is not recommended for production apps, but is great for development or a hackathon
* Open the command palette:
* On Windows, press Ctrl+Shift+P
* On MacOS, press Cmd+Shift+P
* Select *Azure App Service: Deploy to Web App...*
* You will be asked what code you want to deploy. This option will automatically select the folder with your code in it, so select that.
* If you have never signed into Azure from Visual Studio Code before, you will be asked to sign in.
* Select *Sign in to Azure...*
* Your browser will be launched, and you can sign in with your Azure account.
* Once signed in from the browser, you can close the web page that was launched.
* Select the Azure subscription you want to use.
* Select *+ Create New Web App*
There are 2 *Create New Web App* options, one marked as *Advanced*. You want the normal one, **not** the *Advanced* one.
* Give your web app a name. This will be part of the public web site address, so needs to be unique across the world. For example, I might use `jimspythonwebapp2019`.
* Select the runtime for your App Service App. This is a Python app, so select the latest version of the Python runtime, such as *Python 3.7*
* The App Service will start being created. You will see a progress bar on the bottom right, and this will show you once it is complete. You can monitor the progress from the *Output* window by selecting *View -> Output* and selecting *Azure App Service* from the window selector..
* Some popups wil appear asking if you want to make configuration changes to speed up deployment and always deploy this web app. Select **Yes** for both.
* A popup will appear showing the deployment progress. You can monitor the progress from the *Output* window by selecting *View -> Output* and selecting *Azure App Service* from the window selector.
* Once the code has been deployed, you will be able to view the code over the internet. Launch your browser and open your web site. The address will be `https://.azurewebsites.net/`. For example, for my web site this is `https://jimspythonwebapp2019.azurewebsites.net/`.
> These steps will create a Free tier App Service and deploy your app to it. You can only have one Free tier per subscription, so if you have already got a free app service running, use the *Create New Wep App Advanced* option, and create using a paid tier.