Google Cloud Vision API vs scanR vs Tesseract OCR

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Google Cloud Vision API

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Tesseract OCR

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Decisions about Google Cloud Vision API, scanR, and Tesseract OCR
Vladyslav Holubiev
Sr. Directory of Technology at Shelf · | 1 upvote · 37.6K 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.

We run Tesseract serverlessly in AWS Lambda via aws-lambda-tesseract library that we made open-source.

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Pros of Google Cloud Vision API
Pros of scanR
Pros of Tesseract OCR
  • 8
    Image Recognition
  • 7
    Built by Google
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    • 4
      Building training set is easy
    • 1
      Very lightweight library

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    Cons of Google Cloud Vision API
    Cons of scanR
    Cons of Tesseract OCR
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        Be the first to leave a con
        • 1
          Works best with white background and black text

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        - No public GitHub repository available -
        - No public GitHub repository available -

        What is 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.

        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.

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        What companies use Google Cloud Vision API?
        What companies use scanR?
        What companies use Tesseract OCR?
          No companies found

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          What are some alternatives to Google Cloud Vision API, scanR, and Tesseract OCR?
          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.
          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.
          It is the official Portable Network Graphics (PNG) reference library. It is a platform-independent library that contains C functions for handling PNG images. It supports almost all of PNG's features, is extensible, and has been widely used and tested.
          It is a barcode scanning library for Java, Android. Decode a 1D or 2D barcode from an image on the web.
          It is ready-to-use OCR with 40+ languages supported including Chinese, Japanese, Korean and Thai.
          See all alternatives