public OrionRecognize()
{
// TestDirectCallsToDLL(); //minimal code to demonstrate how to use DLL directly, without COM
//it is a good idea to create NSOCR instance here instead of creting it in the same line with "NsOCR" definition
//this way we can handle possible errors if NSOCR is not installed
try
{
NsOCR = new NSOCRLib.NSOCRClass();
}
catch (Exception exc) //some error
{
string msg = "Cannot create NSOCR COM object instance. Possible reasons:\r\n - NSOCR.dll is missed.\r\n - NSOCR.dll was not registered with Regsvr32.\r\n - NSOCR.dll is x32 but this application is x64.\r\n";
msg = msg + "\r\n Exception message:\r\n\r\n" + exc.Message;
System.Windows.Forms.MessageBox.Show(msg);
//Close();
return;
}
// gr = PicBox.CreateGraphics();
Inited = true; //NSOCR instance created successfully
//get NSOCR version
string val;
NsOCR.Engine_GetVersion(out val);
//Text = Text + " [ NSOCR version: " + val + " ] ";
//init engine and create ocr-related objects
if (true /*false*/) //change to "false" to reduce code and initialize engine + create main objects in one line
{
NsOCR.Engine_Initialize();
NsOCR.Cfg_Create(out CfgObj);
//load options, if path not specified, folder with NSOCR.dll will be checked
NsOCR.Cfg_LoadOptions(CfgObj, "Config.dat");
NsOCR.Ocr_Create(CfgObj, out OcrObj);
NsOCR.Img_Create(OcrObj, out ImgObj);
}
else //do the same in one line
{
NsOCR.Engine_InitializeAdvanced(out CfgObj, out OcrObj, out ImgObj);
}
NsOCR.Scan_Create(CfgObj, out ScanObj);
//bkRecognize.Enabled = false;
NoEvent = true;
//cbScale.SelectedIndex = 0;
NoEvent = false;
//bkSave.Enabled = false;
//copy some settings to GUI
//if (NsOCR.Cfg_GetOption(CfgObj, TNSOCR.BT_DEFAULT, "ImgAlizer/AutoScale", out val) < TNSOCR.ERROR_FIRST)
// cbScale.Enabled = (val == "1");
this.ListZoneName = new List <OrionRecognizeZoneDetail>();
}
/// <summary>
/// Converts PDF to DOCX, RTF, HTML, Text with OCR engine.
/// </summary>
public void ConvertPdfToAllWithOCR(string pdfPath)
{
// To perform OCR we'll use free OCR library by Nicomsoft.
// https://www.nicomsoft.com/products/ocr/download/
// The library is freeware and can be used in commercial application.
// Also you have to insert this key: AB2A4DD5FF2A.
NsOCR = new NSOCRLib.NSOCRClass();
NsOCR.Engine_SetLicenseKey("AB2A4DD5FF2A"); //required for licensed version only
NsOCR.Engine_InitializeAdvanced(out CfgObj, out OcrObj, out ImgObj);
SautinSoft.PdfFocus f = new SautinSoft.PdfFocus();
f.OCROptions.Method += PerformOCRNicomsoft;
f.OCROptions.Mode = PdfFocus.COCROptions.eOCRMode.AllImages;
f.WordOptions.KeepCharScaleAndSpacing = false;
string pdfFile = pdfPath;
string outFile = String.Empty;
f.OpenPdf(pdfFile);
if (f.PageCount > 0)
{
// To Docx.
outFile = "Result.docx";
f.WordOptions.Format = PdfFocus.CWordOptions.eWordDocument.Docx;
if (f.ToWord(outFile) == 0)
{
System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(outFile)
{
UseShellExecute = true
});
}
// To HTML.
outFile = "Result.html";
f.HtmlOptions.KeepCharScaleAndSpacing = false;
if (f.ToHtml(outFile) == 0)
{
System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(outFile)
{
UseShellExecute = true
});
}
}
else
{
Console.WriteLine("Error: {0}!", f.Exception.Message);
Console.ReadLine();
}
}
public static byte[] PerformOCRNicomsoft(byte[] image)
{
NSOCRLib.NSOCRClass NsOCR;
int CfgObj = 0;
int OcrObj = 0;
int ImgObj = 0;
int SvrObj = 0;
NsOCR = new NSOCRLib.NSOCRClass();
NsOCR.Engine_SetLicenseKey("AB2A4DD5FF2A"); //required for licensed version only
NsOCR.Engine_InitializeAdvanced(out CfgObj, out OcrObj, out ImgObj);
// Scale
NsOCR.Cfg_SetOption(CfgObj, TNSOCR.BT_DEFAULT, "ImgAlizer/AutoScale", "0");
NsOCR.Cfg_SetOption(CfgObj, TNSOCR.BT_DEFAULT, "ImgAlizer/ScaleFactor", "4.0");
NsOCR.Cfg_SetOption(CfgObj, TNSOCR.BT_DEFAULT, "Languages/English", "1");
try
{
int res = 0;
Array imgArray = null;
using (MemoryStream ms = new MemoryStream(image))
{
ms.Flush();
imgArray = ms.ToArray();
}
res = NsOCR.Img_LoadFromMemory(ImgObj, ref imgArray, imgArray.Length);
if (res > TNSOCR.ERROR_FIRST)
{
return(null);
}
NsOCR.Svr_Create(CfgObj, TNSOCR.SVR_FORMAT_PDF, out SvrObj);
NsOCR.Svr_NewDocument(SvrObj);
res = NsOCR.Img_OCR(ImgObj, TNSOCR.OCRSTEP_FIRST, TNSOCR.OCRSTEP_LAST, TNSOCR.OCRFLAG_NONE);
if (res > TNSOCR.ERROR_FIRST)
{
return(null);
}
res = NsOCR.Svr_AddPage(SvrObj, ImgObj, TNSOCR.FMT_EXACTCOPY);
if (res > TNSOCR.ERROR_FIRST)
{
return(null);
}
Array outPdf = null;
NsOCR.Svr_SaveToMemory(SvrObj, out outPdf);
return((byte[])outPdf);
}
finally
{
}
}