No there is not such function. there is IsAtBeginningOf ( TessPageIteratorIsAtBeginningOf <https://github.com/tesseract-ocr/tesseract/blob/master/src/api/capi.cpp#L653>) and IsAtFinalElement (TessPageIteratorIsAtFinalElement <https://github.com/tesseract-ocr/tesseract/blob/master/src/api/capi.cpp#L658> ).
If you are interesting in BoundingBoxes you can check this "Getting the bounding box of the recognized words using python-tesseract <https://stackoverflow.com/questions/20831612/getting-the-bounding-box-of-the-recognized-words-using-python-tesseract/20832430> ". If you are interesting at handling of tesseract iterator in python than you can find some inspiration in pyocr <https://gitlab.awesome-it.de/robin.lutz/pyocr/blob/67762fbfcf5b6f586ee4fe57bcff634101386e24/src/pyocr/libtesseract/__init__.py#L119> code, or nidaba <https://github.com/OpenPhilology/nidaba/blob/master/nidaba/plugins/tesseract.py#L287> . Zdenko pi 21. 9. 2018 o 6:42 Kurniawan Kurniawan <[email protected]> napísal(a): > * **Tesseract Version**: 3.5.0 and 4.0 > * **Platform**: mac & ubuntu 18.04 > > > I am iterating over recognize api as suggested here. "Result iterator > example" > https://github.com/tesseract-ocr/tesseract/wiki/APIExample > > Pix *image = pixRead("/usr/src/tesseract/testing/phototest.tif"); > tesseract::TessBaseAPI *api = new tesseract::TessBaseAPI(); > api->Init(NULL, "eng"); > api->SetImage(image); > api->Recognize(0); > tesseract::ResultIterator* ri = api->GetIterator(); > tesseract::PageIteratorLevel level = tesseract::RIL_WORD; > if (ri != 0) { > do { > const char* word = ri->GetUTF8Text(level); > float conf = ri->Confidence(level); > int x1, y1, x2, y2; > ri->BoundingBox(level, &x1, &y1, &x2, &y2); > printf("word: '%s'; \tconf: %.2f; BoundingBox: %d,%d,%d,%d;\n", > word, conf, x1, y1, x2, y2); > delete[] word; > } while (ri->Next(level)); > } > > > it seems we do before calling next. If I am calling next first, it will > skip over the first detections. > > Unfortunately when I get this error, > **'NoneType' object is not iterable issue** > When there is no detection. > > Here is the code in python-tesserocr > if (iterator != None): > next = True > while (next): > x,y,right,bottom = iterator.BoundingBox(level) > > next = iterator.Next(level) > > it throws an error on iterator.BoundingBox saying that the iterator is > empty. > > If I call "next = iterator.Next(level)" first, it avoids that error, but > it also skip over the first detection > > > Here is the image, just the whitespace image >  > > > Is there any API to check the hasNext()? > > Thanks > > -- > You received this message because you are subscribed to the Google Groups > "tesseract-ocr" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/tesseract-ocr. > To view this discussion on the web visit > https://groups.google.com/d/msgid/tesseract-ocr/359b2d1f-359e-4d26-8224-06747e62ac5e%40googlegroups.com > <https://groups.google.com/d/msgid/tesseract-ocr/359b2d1f-359e-4d26-8224-06747e62ac5e%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tesseract-ocr. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/CAJbzG8y5uc%3DcuW%2Bb0R8Ye8TjweqWjS1qzJvsXatSt4j7r7gXxQ%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
