public void DoImageLoaded()
{
int res, w, h;
//check if image has multiple page and ask user if he wants process and save all pages automatically
res = NsOCR.Img_GetPageCount(ImgObj);
if (res > TNSOCR.ERROR_FIRST)
{
ShowError("Img_GetPageCount", res);
return;
}
//now apply image scaling, binarize image, deskew etc,
//everything except OCR itself
res = NsOCR.Img_OCR(ImgObj, TNSOCR.OCRSTEP_FIRST, TNSOCR.OCRSTEP_ZONING - 1, TNSOCR.OCRFLAG_NONE);
if (res > TNSOCR.ERROR_FIRST)
{
ShowError("Img_OCR", res);
return;
}
res = NsOCR.Img_GetSkewAngle(ImgObj);
if (res > TNSOCR.ERROR_FIRST)
{
ShowError("Img_GetSkewAngle", res);
}
//pixel lines info
res = NsOCR.Img_GetPixLineCnt(ImgObj);
if (res > TNSOCR.ERROR_FIRST)
{
ShowError("Img_GetPixLineCnt", res);
return;
}
res = NsOCR.Img_GetProperty(ImgObj, TNSOCR.IMG_PROP_INVERTED);
//final size after pre-processing
NsOCR.Img_GetSize(ImgObj, out w, out h);
}
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
{
}
}