Tesseract OCR is not supporting Tamil Language

Help Activities
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1

Hi Team,

I tried to get text from pdf image by using “GET OCR TEXT” activity, but it shows invalid input language. Tesseract Installation verified and version is tesseract v5.5.0.20241111
. If i give language as “eng”, it is working but for “tam” tamil language not working. Please assist.
Note: tam.traineddata file available.

The image shows a UiPath Studio environment with a runtime execution error from Tesseract OCR due to an invalid input language while attempting to extract text from an image. (Captioned by AI)
The image shows a UiPath Studio environment with a runtime execution error from Tesseract OCR due to an invalid input language while attempting to extract text from an image. (Captioned by AI)1600×900 128 KB

2

@CodeRays_Info

did you happen to install c++?

The image contains a text excerpt detailing the prerequisites for running the Tesseract OCR Engine, emphasizing the need to install the Visual C++ Redistributable x86 (32-bit) version regardless of the operating system's architecture and providing a link for the required downloads. (Captioned by AI)
The image contains a text excerpt detailing the prerequisites for running the Tesseract OCR Engine, emphasizing the need to install the Visual C++ Redistributable x86 (32-bit) version regardless of the operating system's architecture and providing a link for the required downloads. (Captioned by AI)800×250 25.3 KB

needed to unpack and train languages

and once the trainign data fiels are placed in right location for them to load we need to reload studio as well

cheers

3

Hi,

The following post may help you.

If you use Enterprise edition (system-install) , please replace “c:\Users\[AccountName]\AppData\Local\Programs” with “c:\Program Files” in the above post.

Regards,

4

I have installed Visual C++ but still getting same error as invalid input language.

5

Yes, I do have that file in the below path

C:\Users\game2\Documents\UiPath\Studio\tessdata

6

Hi,

Please check the above content. it says tessdata folder should be created under the following path.

 c:\Users[AccountName]\AppData\Local\Programs\UiPath\Studio

or

c:\Users[AccountName]\AppData\Local\Programs\UiPath\Studio\net461

Regards,

7

Hi,

Filepath changed but still same error. Please check this attached snapshot.

The image shows a UiPath Studio environment with a "Runtime execution error" related to Tesseract OCR and an open file explorer window indicating a problem with language input for OCR processing. (Captioned by AI)
The image shows a UiPath Studio environment with a "Runtime execution error" related to Tesseract OCR and an open file explorer window indicating a problem with language input for OCR processing. (Captioned by AI)1600×900 144 KB

8

Hi,

Can you try to reboot your machine then try again?

Regards,

9

Yes, after restarting the system, got this error. please check this attached snapshot.

The image shows a debugging process in UiPath Studio Community for a project named 'myfirstproject,' encountering OCR-related errors when trying to extract text using the Tesseract OCR engine. (Captioned by AI)
The image shows a debugging process in UiPath Studio Community for a project named 'myfirstproject,' encountering OCR-related errors when trying to extract text using the Tesseract OCR engine. (Captioned by AI)1600×900 150 KB

10

Hi,

Can you share screenshot of property for TesseractOCR activity?

Regards,

11

The image shows a UiPath Studio workflow setup for extracting OCR text using Tesseract OCR from an application called Astro-Vision YearGuide. (Captioned by AI)
The image shows a UiPath Studio workflow setup for extracting OCR text using Tesseract OCR from an application called Astro-Vision YearGuide. (Captioned by AI)1600×900 121 KB

Attaching snapshot of Tesseract OCR property.

12

Hi,

In my environment (24.10.6 per user install), it works well, if put tam.traineddata under c:\Users\[AccountName]\AppData\Local\Programs\UiPath\Studio\tessdata , as the following.

image
image1065×582 40.2 KB

So, I’d like to confirm your Studio version and install mode: per user install or system install. (we can know it from path UiPath.Studio.exe is installed)

Regards,

13

Version is Studio 2024.10.6

Community License

per user installation

attaching snapshot

The image shows the start page of UiPath Studio Community, displaying options to open or create new projects, recent projects, and available templates. (Captioned by AI)
The image shows the start page of UiPath Studio Community, displaying options to open or create new projects, recent projects, and available templates. (Captioned by AI)1600×900 94.8 KB

14

Hi,

It’s same as my environment.

To isolate cause, can you try to run the following sample?

image
image618×359 12.2 KB

Sample
Sample20241128-1.zip (8.3 KB)

Regards,

15

I have tried this issue but same error. Language given is “tam”

The image shows a UiPath Studio workflow for an OCR text extraction project that encounters errors related to invalid input language during execution. (Captioned by AI)
The image shows a UiPath Studio workflow for an OCR text extraction project that encounters errors related to invalid input language during execution. (Captioned by AI)1600×900 121 KB

16

Hi,

I checked your above image again and it’s not same path what i mentioned.

image
image881×282 24.2 KB

Can you check your path? C:\Users\[userAccount]\AppData\Local\Programs\UiPath\Studio should already exist.

Regards,

17

Thank you for the clarification…After doing this, reloaded the studio and now i got different error.

The image shows a user interface of UiPath Studio Community edition with a sequence workflow including activities for loading an image, performing OCR using Tesseract, and displaying a message box, along with a debug output detailing an OCR error. (Captioned by AI)
The image shows a user interface of UiPath Studio Community edition with a sequence workflow including activities for loading an image, performing OCR using Tesseract, and displaying a message box, along with a debug output detailing an OCR error. (Captioned by AI)1600×900 135 KB

18

Hi,

The following may help you.

However, as you mentioned it works well in Eng as lang settings, it seems strange…
It may be also good if you try another target with tam and/or eng.

Regards,

19

The image shows a screenshot of UiPath Studio Community Edition with an open "Programs and Features" window from the Control Panel, listing installed programs on the computer. (Captioned by AI)
The image shows a screenshot of UiPath Studio Community Edition with an open "Programs and Features" window from the Control Panel, listing installed programs on the computer. (Captioned by AI)1600×900 142 KB

This image shows the UiPath Studio interface with a debugging session that encountered an error in performing Tesseract OCR. (Captioned by AI)
This image shows the UiPath Studio interface with a debugging session that encountered an error in performing Tesseract OCR. (Captioned by AI)1600×900 136 KB

Install vcredist_x86 installed but same issue facing. Please check the attached snapshot.