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scanR

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Tesseract OCR

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scanR vs Tesseract OCR: What are the differences?

scanR: API to detect text in images, built for developers. scanR is a simple OCR API service that supports 32 languages and can extract text from images or PDF files; Tesseract OCR: Tesseract Open Source OCR Engine. Tesseract was originally developed at Hewlett-Packard Laboratories Bristol and at Hewlett-Packard Co, Greeley Colorado between 1985 and 1994, with some more changes made in 1996 to port to Windows, and some C++izing in 1998. In 2005 Tesseract was open sourced by HP. Since 2006 it is developed by Google.

scanR and Tesseract OCR belong to "Image Analysis API" category of the tech stack.

Tesseract OCR is an open source tool with 28.1K GitHub stars and 5.38K GitHub forks. Here's a link to Tesseract OCR's open source repository on GitHub.

Decisions about scanR and Tesseract OCR
Vladyslav Holubiev
Software Enginieer at Shelf · | 1 upvote · 13.7K views

AWS Rekognition has an OCR feature but can recognize only up to 50 words per image, which is a deal-breaker for us. (see my tweet).

Also, we discovered fantastic speed and quality improvements in the 4.x versions of Tesseract. Meanwhile, the quality of AWS Rekognition's OCR remains to be mediocre in comparison.

Worth mentioning that we run Tesseract in AWS Lambda via aws-lambda-tesseract library.

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Pros of scanR
Pros of Tesseract OCR
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    • 1
      Very lightweight library
    • 1
      Building training set is easy

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    Cons of scanR
    Cons of Tesseract OCR
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      • 1
        Works best with white background and black text

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      - No public GitHub repository available -

      What is scanR?

      scanR is a simple OCR API service that supports 32 languages and can extract text from images or PDF files.

      What is Tesseract OCR?

      Tesseract was originally developed at Hewlett-Packard Laboratories Bristol and at Hewlett-Packard Co, Greeley Colorado between 1985 and 1994, with some more changes made in 1996 to port to Windows, and some C++izing in 1998. In 2005 Tesseract was open sourced by HP. Since 2006 it is developed by Google.

      Need advice about which tool to choose?Ask the StackShare community!

      What companies use scanR?
      What companies use Tesseract OCR?
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        What are some alternatives to scanR and Tesseract OCR?
        Google Cloud Vision API
        Google Cloud Vision API enables developers to understand the content of an image by encapsulating powerful machine learning models in an easy to use REST API.
        Amazon Rekognition
        Amazon Rekognition is a service that makes it easy to add image analysis to your applications. With Rekognition, you can detect objects, scenes, and faces in images. You can also search and compare faces. Rekognition’s API enables you to quickly add sophisticated deep learning-based visual search and image classification to your applications.
        Tesseract.js
        This library supports over 60 languages, automatic text orientation and script detection, a simple interface for reading paragraph, word, and character bounding boxes. Tesseract.js can run either in a browser and on a server with NodeJS.
        EasyOCR
        It is ready-to-use OCR with 40+ languages supported including Chinese, Japanese, Korean and Thai.
        See all alternatives
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