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#1 Posted : Friday, June 17, 2022 10:10:34 AM(UTC)
alexkoza

Groups: Registered
Posts: 2


I have the Leadtools Evaluation SDK. When I call OcrEngine.Startup(), I am getting the following exception: Leadtools.Ocr.OcrException: 'OCR engine initialization error, could not find the engine runtime'. Here is my code. It has been working successfully for the last few weeks. I have not been able to find anything about this exception online.

public List<string> GetText(string fileName)
{
SetLicense();

using (var engine = InitializeOcrEngine())
{
return GetText(engine, fileName).Select(page => page.Text).ToList();
}
}

private bool SetLicense()
{
var licenseIsSet = !RasterSupport.KernelExpired;
if (licenseIsSet)
{
return true;
}

try
{
RasterSupport.SetLicense(license, developerKey);

return true;
}
catch (Exception e)
{
Log.Error(e.Message);

throw;
}
}

private IOcrEngine InitializeOcrEngine()
{
var ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.LEAD);
ocrEngine.Startup(null, null, null, null);
return ocrEngine;
}

private List<DocumentPageText> GetText(IOcrEngine ocrEngine, string fileName)
{
using (var documentFactory = DocumentFactory.LoadFromFile(fileName, new LoadDocumentOptions {FirstPageNumber = 1, LastPageNumber = -1}))
{
documentFactory.Text.OcrEngine = ocrEngine;

var pages = new List<DocumentPageText>();
foreach (var page in documentFactory.Pages)
{
var pageText = page.GetText();
pageText.BuildText();
pageText.BuildWords();
pages.Add(pageText);
}

return pages;
}
}
 

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#2 Posted : Friday, June 17, 2022 10:41:29 AM(UTC)
Marcus Andra

Groups: Registered, Manager, Tech Support, Administrators
Posts: 92

Was thanked: 6 time(s) in 6 post(s)

Hello,

You are likely running into an issue here due to the fourth parameter you are passing into the ocrEngine.Startup.

ocrEngine.Startup(null, null, null, null);
https://www.leadtools.co.../iocrengine-startup.html

The fourth parameter for this method looks for the path to where the OCR Runtime files are located. By default you can find the runtime file location in the following default installation location: C:\LEADTOOLS22\Bin\Common\OcrLEADRuntime

Assuming the OCR Runtime files are in this directory, to fix your issue try changing the fourth parameter for this to:
ocrEngine.Startup(null, null, null, @"C:\LEADTOOLS22\Bin\Common\OcrLEADRuntime");

Thanks,
Marcus Andra
Developer Support Engineer
LEAD Technologies, Inc.
LEAD Logo
 
#3 Posted : Friday, June 17, 2022 12:24:52 PM(UTC)
alexkoza

Groups: Registered
Posts: 2


That worked, thank you.
 
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