public static ResultIterator Process(this TessBaseAPI tessBaseAPI, string inputFile, bool createPdf = false)
{
tessBaseAPI.SetPageSegMode(PageSegmentationMode.AUTO);
var pix = tessBaseAPI.SetImage(inputFile);
tessBaseAPI.Recognize();
//if create pdf export pdf
if (createPdf)
{
//ensure input name is set
tessBaseAPI.SetInputName(inputFile);
var fileInfo = new System.IO.FileInfo(inputFile);
string tessDataPath = string.Format("{0}", tessBaseAPI.GetDatapath());
string outputName = fileInfo.FullName.Replace(fileInfo.Extension, string.Empty); //input name.pdf
// ensure the data directory exist
if (!System.IO.Directory.Exists(tessDataPath))
{
throw new System.IO.DirectoryNotFoundException(string.Format("tessData path {0} does not exist", tessDataPath));
}
// call pdf renderer and export pdf
using (var pdfRenderer = new PdfRenderer(outputName, tessDataPath, false))
{
pdfRenderer.BeginDocument("tesseract.net searchable Pdf generation");
pdfRenderer.AddImage(tessBaseAPI);
pdfRenderer.EndDocument();
}
}
pix.Dispose();
return(tessBaseAPI.GetIterator());
}
static void example4()
{
string dataPath = "./tessdata/";
string language = "eng";
string inputFile = "./input.png";
OcrEngineMode oem = OcrEngineMode.DEFAULT;
PageSegmentationMode psm = PageSegmentationMode.AUTO_OSD;
TessBaseAPI tessBaseAPI = new TessBaseAPI();
// Initialize tesseract-ocr
if (!tessBaseAPI.Init(dataPath, language, oem))
{
throw new Exception("Could not initialize tesseract.");
}
// Set the Page Segmentation mode
tessBaseAPI.SetPageSegMode(psm);
// Set the input image
Pix pix = tessBaseAPI.SetImage(inputFile);
// Recognize image
tessBaseAPI.Recognize();
//ensure input name is set
tessBaseAPI.SetInputName(inputFile);
var fileInfo = new System.IO.FileInfo(inputFile);
string tessDataPath = tessBaseAPI.GetDatapath();
string outputName = fileInfo.FullName.Replace(fileInfo.Extension, string.Empty); //input name.pdf
// call pdf renderer and export pdf
using (var pdfRenderer = new PdfRenderer(outputName, tessDataPath, false))
{
pdfRenderer.BeginDocument("tesseract.net searchable Pdf generation");
pdfRenderer.AddImage(tessBaseAPI);
pdfRenderer.EndDocument();
}
tessBaseAPI.Dispose();
pix.Dispose();
}
