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mbuttman
Regular Visitor

Extract text with Windows OCR Engine Issue

Hi,

 

 This seemed to work fine and now intermittently works. The flow hangs up at "Extract text with OCR" when using the Windows OCR engine. The Tesseract engine will work consistently but the results are not very accurate. When the Windows Engine works the results are spot on. Any idea on how to troubleshoot this issue?

 

Thank you,

Michael2022-02-26_10-19-31.jpg 

12 REPLIES 12
VJR
Multi Super User
Multi Super User

Hi Michael,

 

I just tried the Windows OCR engine on one of the sample image files with text.

It did not have any problems.

 

This will obviously not mean that the action works fine :).

So it is hard to say why it gets stuck on this action for your particular file.

I'm sure your file would be a sensitive one and you won't be able to share it. But if you are then I can give it a try.

Also check for any errors log messages. Perhaps raising a ticket with support could be of any help.

 

 

mbuttman
Regular Visitor

Hi,

 

 I found a work around that seems to work reliably. I inserted a "Display Message" step with a 1 sec timeout and now the OCR step works fine. I tried just wait step of 1 sec and it would still hang at OCR step. I'll upload my image so you can give it a try.

 

Thanks,

MichaelPhoto1.jpg

VJR
Multi Super User
Multi Super User

Did not face any issues without adding a timeout or wait stage.

Adding a wait is always a good practice.

Good to hear that it is working out for you now.

 

VJR_0-1646019747490.png

 

Thank you. When I run my flow I have to have a dialog step before the OCR step. I have tried wait steps of various times and the Windows OCR step hangs. It looks like this is specific to my case.

Temp disable the dialog step, priority is getting the Ocr text.

Are you getting the ocr output like VJR explained ?

 

No it hangs at Windows OCR step.

Start the flow from extracting the text, not at the start of the flow...

Same as...

 

 

Screenshot 2022-03-04 133222.png

Flow.jpgI am unable to start flow from Extract Text step. I think its is because I have that step in a For Loop. I will have to create a new flow and replicate my issue.

You could just do a quick subflow.

Read a single file, no loops / getting files in folder etc, just a single file.

If you have a message window popup enabled and you are extracting text from the foreground window in your OCR selection, OCR will then attempt to read the popup as it is now in the foreground.

Does disabling the message popup help?

yusufmerza
Regular Visitor

As strange as it sounds, I had the same issue and was desperate to find a solution.

 

I've read the comments here and got to a solution:

1) Remove the "Extract text with OCR" from any loop and let it run in a sub-flow, and call it in the loop.

2) Before the OCR, add a dialog (e.g. Display Message), I wrote "OCR Activated", and then let it automatically close after 2 seconds.

 

 

As pointless as this sounds, it did work after that.

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