How to extract text from an image using JavaScript

Tesseract.js is a JavaScript library designed to perform Optical Character Recognition (OCR) in both Node.js and browser environments without requiring a server. It enables developers to convert images of text into digital text with a method called .recognize(), which evaluates the text in terms of confidence levels to ensure accuracy. Despite encountering initial setup issues, such as a missing worker.js file, these can be resolved by manually copying the necessary files into the correct directories. The library allows for the creation of applications that not only extract and display text from images but also highlight matched words based on user-defined confidence thresholds. The article illustrates how to implement Tesseract.js in a project, demonstrating the process of setting up HTML elements for image selection and progress tracking, and explains how to manipulate image and text data using FileReader and DOM manipulation techniques. Tesseract.js stands out for its flexibility, being suitable for use in various environments, and offers potential for customization with user-defined training data to improve accuracy for specific applications.