OCRProcessor thread safety

[Josh Bu]

Are instances of OCRProcessor thread safe - can a single instance be shared among multiple threads? Or does each thread need its own instance?

I'm looking at this from a C# perspective if that makes a difference.

[Sowmiya Loganathan]

Hi Josh,   

  

Thank you for contacting Syncfusion support.   

  

The OCR processor is thread safe and single instance can be shared among the multiple threads. Please refer the below code snippet for more details,   

  

string[] files = Directory.GetFiles(@"../../Data");  

  

//Initialize the OCR processor by providing the path of tesseract binaries(SyncfusionTesseract.dll and liblept168.dll)  

OCRProcessor processor = new OCRProcessor(@"../../Tesseract Binaries/");  

  

Parallel.For(0, files.Length, (i, loopstate) =>  

{  

  

    //Load a PDF document  

    PdfLoadedDocument lDoc = new PdfLoadedDocument(files[i]);  

  

    //Set OCR language to process  

    processor.Settings.Language = Languages.English;  

  

    //Process OCR by providing the PDF document and Tesseract data  

    string str = processor.PerformOCR(lDoc, @"../../Tessdata/", true);  

  

    string name = Guid.NewGuid().ToString();  

  

    lDoc.Save(name + ".pdf");  

    lDoc.Close(true);  

});  

  

Please let us know if you need any further assistance on this.   

  

Regards,  

Sowmiya Loganathan  

 

[Josh Bu]

Thanks Sowmiya.  I'm just surprised since OCRProcessor seems to have several member variables it uses.

[Sowmiya Loganathan]

Hi Josh,   

  

Thank you for the update. Please let us know if you need any further assistance on this.   

  

Regards,  

Sowmiya Loganathan