Issue With Page Segment Mode

[Shobhit Kapil]

Hi Team,

I am using Tesseract 4.0.0.0 version in c#.

In which i am using the below code....

So i am processing a pdf scanned image instead of processing the whole image i am making the height of image  = img.height /3 in that case i getting the below exception in page1.GetIterator(),

I am not getting error in all the file just in fewer files and when i am not making the height /3 and passing the complete height it is working for all the images.

system.accessviolationexception: 'attempted to read or write protected memory. this is often an indication that other memory is corrupt.

Any help!!!

 _engine = new TesseractEngine(

                            Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location) +

                            "\\tessdata", "eng", EngineMode.Default);

using (var ocr = Engine)

                {  

                    using (var page1 = ocr.Process(img1, PageSegMode.SparseText))

                    {

                        using (var iterator = page1.GetIterator())

                        {

                            iterator.Begin();

                            do

                            {

                                processWord = iterator.GetText(PageIteratorLevel.Word);

                                iterator.TryGetBoundingBox(PageIteratorLevel.Word, out Rect bounds);

                                OCRWords = new OCRObjects();

                                OCRWords.index = _index;

                                OCRWords.key = processWord;

                                OCRWords.bounds = bounds;

                                ocrObjects.Add(OCRWords);

                                _index++;

                            } while (iterator.Next(PageIteratorLevel.Word));

                        }

                    }

                } // End of OCR iteration. 

[Carsten Giesen]

Hello,

I run exact in the same error. I didn't found a solution until now.

Did you found something or have a idea?

cu

Carsten