Unanswered

Error while extracting text with Windows OCR Engine

(0) Share

Report

Posted on by Bharath_85

I am trying to extract text from Jpeg file using Windows OCR engine. I used option of "Seach in subregion relative to Image" and reference image in the file is selected. Below is the error Message

Location : Subflow: Main, Action: 15, Action name: Extract text with OCR

Error Message : Failed to extract text with OCR

Error detals :

Sequence contains no matching element: Microsoft.Flow.RPA.Desktop.Modules.SDK.ActionException: Failed to extract text with OCR ---> System.InvalidOperationException: Sequence contains no matching element
at System.Linq.Enumerable.Last[TSource](IEnumerable`1 source, Func`2 predicate)
at Microsoft.Flow.RPA.Desktop.Modules.OCR.Utilities.Utilities.GetImageForOCR(OCRSource source, SourceScanMode sourceScanMode, Nullable`1 scanRegionX1, Nullable`1 scanRegionY1, Nullable`1 scanRegionX2, Nullable`1 scanRegionY2, IEnumerable`1 imagesToFind, Int32 tolerance, Boolean waitForImage, Boolean timeoutSet, Nullable`1 timeout, Nullable`1 searchRegionImageX1, Nullable`1 searchRegionImageY1, Nullable`1 searchRegionImageX2, Nullable`1 searchRegionImageY2, Action suspendSecureScreen, Action restoreSecureScreen, String imageFilepath, IImageFinder imageFinder)
at Microsoft.Flow.RPA.Desktop.Modules.OCR.Actions.ExtractTextWithOCRBase.Execute(ActionContext context)
--- End of inner exception stack trace ---
at Microsoft.Flow.RPA.Desktop.Modules.OCR.Actions.ExtractTextWithOCRBase.Execute(ActionContext context)
at Microsoft.Flow.RPA.Desktop.Robin.Engine.Execution.ActionRunner.Run(IActionStatement statement, Dictionary`2 inputArguments, Dictionary`2 outputArguments)

Please suggest how to extract the text

Categories:

Power Automate Desktop

I have the same question (0)

All responses (5)

Answers (0)

Riyaz_riz11 4,048 Super User 2026 Season 1 on at

Like (1)

Report
Copy link

Link copied!

Hi @Bharath_85

Can you try this one.

Regards

Ahammad Riyaz

--------------------------------------------------------------------------------
If this post helps answer your question, please click on “Accept as Solution” to help other members find it more quickly. If you thought this post was helpful, please give it a Thumbs Up.

Was this reply helpful? Yes No
Bharath_85 4 on at

Like (0)

Report
Copy link

Link copied!

Hi Ahammad,

I am getting error only when I am using "Seach in subregion relative to Image" option.... How to use Search in subregion relative to image option

Was this reply helpful? Yes No
VJR 7,635 on at

Like (0)

Report
Copy link

Link copied!

Can you take a look at this link. Go through all the responses in this link and something might ring a bell to you to know what to do.

https://powerusers.microsoft.com/t5/Power-Automate-Desktop/Extract-Text-with-OCR/td-p/1206603

Was this reply helpful? Yes No
Bharath_85 4 on at

Like (0)

Report
Copy link

Link copied!

Hi VJR,
Could not figure out the solution... still I am unable to extract text from "Subregion relative to image" option.. I tried by giving coordinates of image as well.. Please help

Was this reply helpful? Yes No
VJR 7,635 on at

Like (0)

Report
Copy link

Link copied!

Hi @Bharath_85

Do some trial and error.

- Make sure to give the correct X,Y and sub region images

- Check if it extracts the text when "whole of specified source" is given.

Although it is for WinAutomation but "Move Mouse to Text on Screen" will help to get some details on the co-ordinates.

https://docs.winautomation.com/V9_0/en/move-mouse-to-text-on-screen--ocr--action.html#move-mouse-to-text-on-screen--ocr--action

Was this reply helpful? Yes No