OCR is reading watermark letters

Vikas Mathad 0

IC Sample2

We are using Form recognizer for extracting data from these types of ID's. however these ID's have a watermark (not visible on this sample image) which are getting picked. How do we avoid that from happening as it is impacting the accuracy.

Vikas Mathad 0 Reputation points

2023-06-12T02:53:07.9233333+00:00

Thank you for the quick response, It is not blocking the values from being read, however it is picking additional characters from the watermark which is leading to accuracy issues. If there is no way to remove them from Form recognizer then have to leave with it i guess.
VasaviLankipalle-MSFT 18,391 Reputation points

2023-06-13T05:24:48.8833333+00:00

Hello @Vikas Mathad , yes, as this feature is in the plan but looks like not any time soon, so we do not have any workaround. Thanks for understanding.
Paul Taras 0 Reputation points

2024-03-04T10:14:22.7533333+00:00

Is there any update on this feature being in the plan? We are rolling out a solution using form recognizer with custom text extraction but 10% of our documents contain watermarks which are providing inaccurate results.

1 answer

VasaviLankipalle-MSFT 18,391 Reputation points

2023-06-09T22:10:07.9666667+00:00

Hi @Vikas Mathad , Thanks for using Microsoft Q&A Platform.

Sorry for the inconveniences. Yes, this is a known issue. I don't think we have this watermark removal feature supported yet in the Form recognizer.

My suggestion is if the watermark is not blocking the values from being read by the OCR, then it may not be necessary to remove it. However, if it is causing issues with the data extraction, then please try to explore external tools for removing it.

This feature is in the plan but looks like not any time soon will be available, so we do not have any workaround at this moment. Thanks for understanding.

I hope this helps.

Regards,
Vasavi

-Please kindly accept the answer and vote 'yes' if you feel helpful to support the community, thanks.
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RABIE BIE 0 Reputation points

2025-01-24T11:04:51.2966667+00:00

I suggest adding an option to set the detection opacity of the text
to explain what I mean, the one asked the question can solve it by slightly increasing the brightness of the image using an external tool and the pattern texts will be gone and then will not be detected by the OCR.
but I suggest adding similar thing in the solution itself, and I think such thing will be enough for high portion of use cases before going behind a more complicated solution
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OCR is reading watermark letters

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