1. Introduction
6 minStep 1 of 16
Build a Flask OCR app — upload an image, extract text with Tesseract, display results in the browser
What you'll need
- •Python 3.8–3.10 recommended. You need Tesseract installed system-wide, plus pip packages below.
- •Tesseract OCR installed on your machine (brew install tesseract on Mac, apt install tesseract-ocr on Linux)
Why this matters
OCR powers receipt scanning, document digitization, and ID verification pipelines. You practice the same upload → preprocess → ML library → display loop as production document AI apps.
What you'll have at the end
A local Flask site where you upload a photo with text, click Extract, and see each line of recognized text beside the image. Portfolio-ready Python full-stack work.
FlaskpytesseractOpenCVgrayscalefile upload
