OCR Technologies Compared: Tesseract, Abbyy OCR, Google Cloud Vision, Paddle OCR, EasyOCR, and Keras OCR

Ilia Ozhmegov
3 min readApr 17, 2023

Optical Character Recognition (OCR) technology has come a long way in recent years, with many advanced OCR engines available on the market. In this article, we will compare six of the most popular OCR technologies: Tesseract, Abbyy OCR, Google Cloud Vision, Paddle OCR, EasyOCR, and Keras OCR.

Photo by @felipepelaquim on Unsplash

Tesseract

Tesseract is an open-source OCR engine originally developed by Hewlett-Packard in the 1980s. It is now maintained by Google and is available under an Apache License. Tesseract supports a wide range of languages and has been trained on millions of documents, making it a popular choice for many OCR tasks. However, it may require some manual tuning for specific use cases, and it can struggle with handwriting and low-quality scans. Tesseract is available for free.

Abbyy OCR

Abbyy OCR is a commercial OCR engine that is known for its high accuracy and ability to handle complex documents. It has a user-friendly interface and supports a wide range of languages, including Arabic and Chinese. Abbyy OCR uses advanced machine learning algorithms to analyze documents, and it can be customized to suit specific use cases. However, its high accuracy comes at a cost, as it can be more expensive than other OCR engines. Abbyy OCR is a paid service.

Google Cloud Vision

Google Cloud Vision is a cloud-based OCR engine that is part of the Google Cloud Platform. It uses deep learning algorithms to analyze images and documents and can recognize text in over 50 languages. It is easy to use and can be integrated with other Google services, such as Google Drive and Google Translate. However, it is a cloud-based service, which means it may not be suitable for applications that require offline processing or have strict data security requirements. Google Cloud Vision offers both free and paid plans, depending on usage.

Paddle OCR

Paddle OCR is an OCR engine developed by PaddlePaddle, an open-source deep-learning platform. It supports multiple languages, including Chinese and English, and can handle a variety of document types. It is designed to be easy to use and can be customized to suit specific use cases. Paddle OCR is available for free.

EasyOCR

EasyOCR is another open-source OCR engine that is designed to be easy to use. It supports over 70 languages and can handle a wide range of document types. It uses deep learning algorithms to analyze documents, and can even recognize handwriting in some cases. EasyOCR is available for free.

Keras OCR

Keras OCR is an OCR engine that is built on the Keras deep learning library. It supports a wide range of languages and can handle a variety of document types. It is designed to be easy to use and can be customized to suit specific use cases. However, it may not be as accurate as some of the other OCR engines on this list. Keras OCR is available for free.

Conclusion

All six of these OCR technologies have their strengths and weaknesses, and the choice of which to use will depend on the specific use case. Tesseract and Paddle OCR are good choices for many simple OCR tasks, while Abbyy OCR and Google Cloud Vision are better choices for more complex documents that require high accuracy. EasyOCR and Keras OCR are also good choices for those who require open-source OCR capabilities. Ultimately, the best OCR technology for a given use case will depend on factors such as accuracy requirements, document complexity, language support, cost, and availability.

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