DateExtraction

This repo contains the source code for system which extracts date from images in the required format.

To ease this functionality an API has been deployed in Heroku platform.

API Details:

1. URL : "http://npranav10-extractdate.herokuapp.com/extractDate"
2. The API accepts only base64 encoded bytes of an image
3. POST method : Request Header : "application/json" in the form {“base_64_image_content”: <base_64_image_content>}
4. Response Header : "application/json" in the form

If date is present: {“date”: “YYYY-MM-DD”} If date is not present: {“date”: null}

Behind the Scenes:

1. Flask framework is used to a make a web app in Python to serve the API requests.
2. Python driver code: "pytesseract" package is used to extract text from image and "js2py" package for advanced regex matching to match all possible data formats.
3. Heroku platform is used to host the API.

Steps to run the program locally:

1. git clone https://github.com/npranav10/DateExtraction
2. cd ./DateExtraction/localTest
3. python test.py ./pathtoimage/imagename.jpg

A short info about files:

test.py : Driver code to run extract date from Images. Takes in location of an image as input. e.g : python test.py ./Receipts/1.jpg

devtest.py : A script to automate execution of test.py for all images in the Receipts folder. e.g : python devtest.py

imageTobase64.py : Encodes an image to base64 bytes and prints it in the console.

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An article which will cover all aspects of designing and deploying this system will be published soon (mostly in Medium.com) and keep checking this page for the article's link.

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