Textract does not recognize image text
I want to get the text from an image but Textract doesn't read anything.
I have tried with similar images and if it reads the information.
Would you know what could be the problem for which it does not read the image?
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Sometimes in general while doing OCR (Optical Character Recognition) you need to pre-process the image, especially when you have some characters that not very defined.
In your case:
- I would crop the image to "focus" on the non-white part
- tilt the image in order to be as vertical as possible
- increase the contrast by 20-30%
Therefore, as you can see from my result, it recognize everything :)
You could use a Lambda or the SageMaker Processing Python job with OpenCV or similar product in order to pre-process the images. Usually this is a best practice in order to obtain better results. Please check this blog: https://aws.amazon.com/it/blogs/machine-learning/process-text-and-images-in-pdf-documents-with-amazon-textract/ or this notebook: https://github.com/aws-samples/textract-visual-removal/blob/main/visual_removal_canny_edge_detector.ipynb
the output in Textract:
[if my response was useful, please click the "Accept" tick]
For This use case Consider using Amazon Rekognition - > https://docs.aws.amazon.com/rekognition/latest/dg/text-detection.html .
Rekognition Text has a limit of 100 words, therefore it's not the best choice: https://docs.aws.amazon.com/rekognition/latest/dg/text-detection.html