OCR - Image Reader

Description

OCR - Image Reader is a powerful optical character recognition (OCR) extension for Chrome designed to capture and convert images into editable text. Upon installation, it adds a toolbar button to your browser. When activated, users can select a specific region within the active window for OCR processing.

The extension utilizes the Tesseract OCR engine, integrated via the "tesseract.js" library, which boasts support for over 100 languages. Key features include automatic text orientation detection and script recognition, enhancing the accuracy and usability across diverse text sources. The library is loaded on demand and removed after use, ensuring no long-term resource consumption.

Two OCR engines are available: Tesseract, which extracts plain text without preserving formatting, and IBM Granite-Docling, capable of interpreting headings, lists, styles (bold, italics), tables, and mathematical equations. The extension provides a progress bar during detection due to the inherent slowness of OCR processes. Importantly, all OCR processing is performed offline, with no server-side interaction, except for the initial download of language training data.

This tool is versatile, allowing users to extract text from images, PDF documents, PowerPoint slides, or even web pages where content selection might be restricted. For improved accuracy, the extension includes a feature to invert images and retry OCR, which is particularly beneficial for dark-themed interfaces. Users can also manually modify images and re-upload them for another attempt if initial extraction confidence is low.

Version 0.2.4 introduced support for browser-level page zooming and OS-level screen zooming, along with beta-level image language detection. The extension is offered by brian.girko and has garnered a 4.1 out of 5 rating from 243 users, indicating a generally positive reception for its OCR capabilities.

OCR's Core Features

• Optical Character Recognition (OCR) for image-to-text conversion

• Internal OCR engine (Tesseract via tesseract.js)

• Supports over 100 languages

• Automatic text orientation and script detection

• Offline OCR processing

• Choice between Tesseract (plain text) and IBM Granite-Docling (formatted text) engines

• Image inversion and retry option for improved accuracy

• Ability to extract text from images, PDFs, and Powerpoint slides

• Extracts text from web pages with restricted content selection

• On-demand loading and unloading of JS library

• Progress bar for detection modules

• Support for browser and OS-level zooming

• Beta image language detection

How to use OCR?

1. 1

   Install the OCR - Image Reader extension from the Chrome Web Store.

2. 2

   Click the extension's toolbar button to activate it.

3. 3

   Select the desired region on your screen containing the image or document.

4. 4

   The extension will capture the area and perform OCR processing.

5. 5

   Review the extracted text for accuracy.

6. 6

   If needed, modify the image and re-upload it for another OCR attempt.

OCR's Use Cases

• Extract text from images
• Digitize documents
• Process PDF content
• Capture web page text
• Analyze presentation slides
• Improve accessibility
• Data entry automation

FAQ from OCR

• What is OCR - Image Reader and what does it do?

  OCR - Image Reader is a Chrome extension that uses optical character recognition to capture and convert images into text. It allows users to select regions of their screen and extract text from them.

• How does OCR - Image Reader work?

  The extension captures a selected screen region, then uses an internal OCR engine (Tesseract via tesseract.js) to recognize and extract text. It supports over 100 languages and processes data offline.

• Can OCR - Image Reader extract text from PDFs?

  Yes, the tool can be used to extract text content out of PDF documents, among other image-based sources.

• Does OCR - Image Reader require an internet connection to process text?

  No, the OCR process is performed offline. The extension only fetches language training data from the internet once on the first run.

• What languages does OCR - Image Reader support?

  The extension supports more than 100 languages, thanks to the 'tesseract.js' library it utilizes.

• Can I extract formatted text with OCR - Image Reader?

  Yes, the IBM Granite-Docling engine can accurately interpret headings, lists, styles (bold, italics), tables, and mathematical equations. The Tesseract engine extracts plain text.

• What happens if the text extraction confidence is low?

  If the text extraction confidence is low, the extension can invert the image and retry the OCR process, which is particularly useful on dark themes.

• Can I improve the accuracy of OCR - Image Reader?

  Yes, if the text extraction is not accurate, you can modify the image and drop it into the interface to retry the OCR process.

• How many users does OCR - Image Reader have?

  The extension has 200,000 users.

• What is the rating of OCR - Image Reader?

  OCR - Image Reader has an average rating of 4.1 out of 5 stars based on 243 ratings.

• Does the developer collect or use my data?

  The developer has disclosed that they will not collect or use your data, and it is not sold to third parties outside of approved use cases.