Different OCR solutions

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Providers

• https://ocr.space/
  • No Captcha before testing
• Microsoft Azure OCR
  • https://azure.microsoft.com/en-us/services/cognitive-services/computer-vision/
  • This has a captcha before testing
  • In the returned JSON, there are 5 zones as seen below
• Google Cloud Vision API
  • https://cloud.google.com/vision/
  • no captcha before testing
  • In the returned JSON, the boxes recognised by Google are in fullTextAnnotation=>pages=>blocks
    • These boxes still leave alot of manual editing to be done, with badly interpreted order in many cases

Original image

Azure Result

Google Result

Pricing

• Microsoft 5000 free per month
• Google 100 free per month
• OCR Space 25000 free per month