int tess_capi_get_ocr(PIX *pix,char *outstr,int maxlen,FILE *out)
{
STRING text_out;
if (!api.ProcessPage(pix,0,NULL,NULL,0,&text_out))
{
/* pixDestroy(&pix); */
if (out!=NULL)
fprintf(out,"tesscapi: Error during bitmap processing.\n");
api.Clear();
return(-1);
}
strncpy(outstr,text_out.string(),maxlen-1);
outstr[maxlen-1]='\0';
api.Clear();
return(0);
}
pair<int,string> TesseractBridge::processEx(const Mat& tmp, Rect& r) {
api.Clear();
char* cstr = api.TesseractRect(tmp.data, tmp.channels(), tmp.cols*tmp.channels(), 0, 0, tmp.cols, tmp.rows);
// cout << cstr << endl;
delete[] cstr;
tesseract::ResultIterator* ri = api.GetIterator();
tesseract::PageIteratorLevel level = tesseract::RIL_WORD;
if (ri != 0) {
const char* word = ri->GetUTF8Text(level);
if(!word) return make_pair(0, "");
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);
string theword(word);
delete[] word;
bool allnonalphanom = true;
for (int i=0; i<theword.size(); i++) {
allnonalphanom = allnonalphanom && !(isalnum(theword[i]) || theword[i] == '"' || theword[i] == '.' || theword[i] == ',' || theword[i] == '?' || theword[i] == '!' || theword[i] == '\'');
}
if (allnonalphanom) return make_pair(0, "");
r.x += x1;
r.y += y1;
r.width = x2-x1;
r.height = y2-y1;
return make_pair((int)conf, theword);
} else
return make_pair(0, "");
}
void run(Mat& image, string& output, vector<Rect>* component_rects=NULL,
vector<string>* component_texts=NULL, vector<float>* component_confidences=NULL,
int component_level=0)
{
CV_Assert( (image.type() == CV_8UC1) || (image.type() == CV_8UC3) );
#ifdef HAVE_TESSERACT
if (component_texts != 0)
component_texts->clear();
if (component_rects != 0)
component_rects->clear();
if (component_confidences != 0)
component_confidences->clear();
tess.SetImage((uchar*)image.data, image.size().width, image.size().height, image.channels(), image.step1());
tess.Recognize(0);
char *outText;
outText = tess.GetUTF8Text();
output = string(outText);
delete [] outText;
if ( (component_rects != NULL) || (component_texts != NULL) || (component_confidences != NULL) )
{
tesseract::ResultIterator* ri = tess.GetIterator();
tesseract::PageIteratorLevel level = tesseract::RIL_WORD;
if (component_level == OCR_LEVEL_TEXTLINE)
level = tesseract::RIL_TEXTLINE;
if (ri != 0) {
do {
const char* word = ri->GetUTF8Text(level);
if (word == NULL)
continue;
float conf = ri->Confidence(level);
int x1, y1, x2, y2;
ri->BoundingBox(level, &x1, &y1, &x2, &y2);
if (component_texts != 0)
component_texts->push_back(string(word));
if (component_rects != 0)
component_rects->push_back(Rect(x1,y1,x2-x1,y2-y1));
if (component_confidences != 0)
component_confidences->push_back(conf);
delete[] word;
} while (ri->Next(level));
}
delete ri;
}
tess.Clear();
#else
cout << "OCRTesseract(" << component_level << image.type() <<"): Tesseract not found." << endl;
output.clear();
if(component_rects)
component_rects->clear();
if(component_texts)
component_texts->clear();
if(component_confidences)
component_confidences->clear();
#endif
}
