// 이 함수는 페이지를 획득하고 파일 트랜스퍼 모드를 사용하여 그 페이지를 파일로 저장할 것임

private void AcquireUsingFileMode(TwainSession session)
{
try
{
// 파일 트랜스퍼모드가 지원되는지의 여부를 채크
if (session.IsFileTransferAvailable == false)
{
// 파일 트랜스퍼모드가 지원되지 않음
MessageBox.Show(this, "File transfer mode is not supported!");
return;
}
// 초기 트랜스퍼 옵션들을 얻기
session.GetTransferOptions();
// 트랜스퍼 모드를 파일로 설정하기
session.TransferMode = TwainTransferModes.TwainTransferFile
// 트랜스퍼 파일포멧 설정하기
session.TransferFileFormat = (int)TwainCapabilityValue.FileFormatBmp;
// 트랜스퍼 파일명 설정하기, 그 파일명은 획득된 페이지를 저장하기 위해 사용될 것임
session.TransferFileName = @"c:\test.bmp";
// update transfer options
session.SetTransferOptions();
// 소오스로부터 페이지를 획득하고 이를 파일로 저장하기
session.Acquire(TwainUserInterfaceFlags.Show |
TwainUserInterfaceFlags.Modal);
MessageBox.Show(this, "Acquired page is saved to file", "Acquire to File");
}
catch (Exception ex)
{
// 실패 발생
MessageBox.Show(this, ex.Message);
}
}

• Visual Studio 2005를 시작하고 신규 Visual Basic Windows Application을 제작.
• 주메뉴에서 Project를 선택하여 Add Reference 메뉴를 클릭.
• Add Reference 다이얼로그에서, Browse 탭페이지를 클릭하고 다음의 폴더르 이동:
  C:\Program Files\LEAD Technologies, Inc.\LEADTOOLS 14.5\Bin\Dotnet\v20
• 다음과 같은 LEADTOOLS DLL을 선택하고 OK를 클릭:
  Leadtools.dll
  Leadtools.Codecs.dll
  Leadtools.WinForms.dll
• 그것의 Load 이벤트에 하나의 이벤트를 추가하기 위해 Form1을 다블클릭, IDE는 코드보기로 스위치할 것임, Form1_Load 메소드에 다음과 같은 라인들을 추가:

Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles MyBase.Load
' Add a RasterImageViewer control to the form
Dim viewer As New Leadtools.WinForms.RasterImageViewer
viewer.Dock = DockStyle.Fill
viewer.SizeMode = _
Leadtools.WinForms.RasterViewerSizeMode.FitIfLarger
Controls.Add(viewer)
viewer.BringToFront()

' Tell the RasterCodecs object where to find the LEADTOOLS codecs Leadtools.Codecs.RasterCodecs.CodecsPath = _

"C:\Program Files\LEAD Technologies, Inc.\LEADTOOLS 14.5\Bin\Dotnet\v20"
' Create a new RasterCodecs object to load files
Dim codecs As New Leadtools.Codecs.RasterCodecs

' Load and view an image into the viewer
viewer.Image = codecs.Load( _
"C:\Program Files\LEAD Technologies, Inc.\LEADTOOLS 14.5\Images\Image1.cmp")
End Sub
End Class

• F5 또는 Ctrl-F5 키를 쳐서 프로젝트를 빌드 및 수행
  

// LEADTOOLS Viewer Control 을 생성하고 이를 사용자 폼에 추가

RasterImageViewer viewer;
viewer = new RasterImageViewer();
viewer.SizeMode = RasterViewerSizeMode.Fit;
viewer.Bounds = ClientRectangle;
Controls.Add(viewer);
viewer.BringToFront();

// LEADTOOLS Codecs 객체를 생성하여 이를 하나의 이미지를 로드하기 위해 사용

RasterCodecs codecs = new RasterCodecs();
codecs = new RasterCodecs();

// 메모리를 저장하기 위해, 메모리 이미지들내에 압축을 활성화

codecs.Options.Load.Compressed = true;
codecs.Options.Load.SuperCompressed = true;

// 이미지 파일을 로드

viewer.Image = codecs.Load(@"\d:\temp\test.jpg",
0, Leadtools.Codecs.CodecsLoadByteOrder.Bgr, 1);

LMMP4EncoderLib.LMMP4Encoder MPEG4;
MPEG4 = ltmmCapture.GetSubObject(11) as LMMP4EncoderLib.LMMP4Encoder;
MPEG4.OutputFrameRate = 15;
MPEG4.PFrames = 10;
MPEG4.BFrames = 0;
MPEG4.SearchWidth = 8;
MPEG4.SearchHeight = 8;
MPEG4.QFactor = 9;
MPEG4.QuantType = eQuantType.LMP4_QUANTTYPE_Linear;
MPEG4.MotionAlgorithm = eMotionAlgorithm.LMP4_MOTIONALGORITHM_FastSearch;
MPEG4.MotionAccurancy = eMotionAccuracy.LMP4_MOTIONACCURACY_HalfPixel;
MPEG4.MotionVectorPerMacroblock = eMotionVectorPerMacroblock.LMP4_MOTIONVECTOR_OnePerMacroblock;
MPEG4.OutputFormat = eOutputFormat.LMP4_OUTPUTFORMAT_mp4v;
MPEG4.SuperCompression = false;

using Leadtools.Codecs;
using Leadtools.Pdf;
using Leadtools.Mrc;

private void CreatePdfMRCDocument(Leadtools.IRasterImage image, RasterCodecs codecs)
{

PdfCompressor pdfCompressor = new Leadtools.Pdf.PdfCompressor();
PdfCompressorCompressionTypes compressionTypes= new
PdfCompressorCompressionTypes();
PdfCompressorOptions pdfCompressorOptions = new PdfCompressorOptions();

//Sets compression types needed for each segment
compressionTypes.Comp1Bit = PdfCompressor1BitCompression.Zip1Bit;
compressionTypes.Comp2Bit = PdfCompressor2BitCompression.Lzw2Bit;
compressionTypes.CompPicture = PdfCompressorPictureCompression.JpgPic;
compressionTypes.QFactor = 2;

//Flags for used compression types should be set
compressionTypes.Flags = EnabledCompressionsFlags.EnableOneBit |
EnabledCompressionsFlags.EnableTwoBit |
EnabledCompressionsFlags.EnablePicture;

pdfCompressor.SetCompression(compressionTypes);

//Specify suitable profiles for input and output image
pdfCompressorOptions.ImageQuality = PdfCompressorImageQuality.ComputerGenerated;
pdfCompressorOptions.OutputQuality = PdfCompressorOutputQuality.Excellent;
pdfCompressorOptions.Flags = SegmentationOptionsFlags.FavorOneBit |
SegmentationOptionsFlags.WithBackground;

pdfCompressor.SegmentImage += new PdfCompressorSegmentImageEventHandler(pdfCompressor_SegmentImage);
pdfCompressor.Insert(image, pdfCompressorOptions);

pdfCompressor.Write(codecs, @"c:\image.pdf");
}

private void pdfCompressor_SegmentImage(object sender, PdfCompressorSegmentImageEventArgs e)
{
//This will prevent addition to any segment with type background
if(e.Segment.SegmentType == SegmentTypeFlags.Background)
e.Cancel = true;
else

e.Cancel = false;

}

// This example shows the barcode coding with LEADTOOLS
#include "l_bitmap.h"
#include "ltbar.h"

pBARCODEDATA TestRead(L_TCHAR * szImageFileName)
{
// Bitmap handle to hold the loaded image.
BITMAPHANDLE Bitmap;
// Barcode data pointer to hold results array.
pBARCODEDATA pResults = NULL;

// This is a LEADTOOLS function that loads any image in any format.
L_LoadBitmap(szImageFileName,&Bitmap,sizeof(BITMAPHANDLE),
0,ORDER_BGR, NULL,NULL);
// Read the barcodes in the image
L_BarCodeRead(&Bitmap,NULL,BARCODE_1D_READ_ANYTYPE,
0,0,0,NULL,NULL,NULL,&pResults, sizeof(BARCODEDATA));
// Free bitmap
L_FreeBitmap(&Bitmap);
// Return the results
return pResults;
}

// This example shows how to detect the rotation angle of an image and correct it by using //barcodes
#include "l_bitmap.h"
#include "ltbar.h"
//Compute the barcode center based on its four corner points
L_VOID ComputeBarcodeCenter(LPPOINT p1, LPPOINT p2, LPPOINT p3, LPPOINT p4,
L_INT * pnCx, L_INT *pnCy)
{
*pnCx = (p1->x + p2->x + p3->x+ p4->x)/4;
*pnCy = (p1->y + p2->y + p3->y+ p4->y)/4;
}
//Compute the barcode angle
L_VOID ComputeBarcodeAngle(LPPOINT p1, LPPOINT p2, LPPOINT p3, LPPOINT p4,
L_INT * pnAngle)
{
L_DOUBLE dx, dy, dAngle;
L_DOUBLE pi = 3.1415926535;

dx = ((p4->x - p1->x) + (p3->x- p2->x))/2;
dy = ((p4->y - p1->y) + (p3->y- p2->y))/2;

dAngle = atan2(dy, dx);
*pnAngle = (L_INT)(dAngle*18000/pi);
}
//Compute Image rotation angle
L_VOID ComputeImageAngleToRef(L_INT nRefCx, L_INT nRefCy, L_INT nRefWidth, L_INT nRefHeight,
L_INT nImgCx, L_INT nImgCy, L_INT nImgWidth, L_INT nImgHeight,
L_INT nBarAngle, L_INT * pnImgAngle)
{
L_INT nRefAngle, nImgAngle, nDif;
L_DOUBLE pi = 3.1415926535;

if(nBarAngle > 9000)
nBarAngle -= 18000;

nRefAngle = (L_INT)(18000*atan2((nRefCy - nRefHeight/2.0),(nRefCx - nRefWidth/2.0))/pi);
nImgAngle = (L_INT)(18000*atan2((nImgCy - nImgHeight/2.0),(nImgCx - nImgWidth/2.0))/pi);
nDif = abs(nRefAngle - nImgAngle);
if(nDif > 18000)
nDif = 36000-nDif;
if( nDif > 9000)
*pnImgAngle = nBarAngle + 18000;
else
*pnImgAngle = nBarAngle;
}
// Read the barcode, compute the skew angle and correct the image
L_INT CorrectImageAngle(pBITMAPHANDLE pLeadBitmap)
{
BARCODE1D bar1D;
pBARCODEDATA barData;
L_INT nRet, nStartX, nStartY, nWidth, nHeight, nBarAngle, nImageAngle, nCx, nCy;
POINT p1, p2, p3, p4;
//Reference Image Properties
L_INT nRefCx = 151, nRefCy=99, RefWidth=1908, RefHeight=2471;
ZeroMemory(&bar1D, sizeof(BARCODE1D));
bar1D.uStructSize = sizeof(BARCODE1D);
bar1D.bErrorCheck = TRUE;
bar1D.nGranularity = 9;
bar1D.nMinLength = 4;
bar1D.nDirection = BARCODE_DIR_HORIZONTAL|BARCODE_DIR_VERTICAL;
//Call the barcode read function to detect the barcode, note that we used
//BARCODE_RETURN_FOUR_POINTS to get the exact barcode corners
nRet = L_BarCodeRead(pLeadBitmap, NULL, BARCODE_1D_READ_ANYTYPE,
BARCODE_SCANLINES_PER_PIXELS, BARCODE_RETURN_FOUR_POINTS,
1, &bar1D, NULL, NULL, &barData, sizeof(BARCODEDATA));
if(nRet != SUCCESS)
return nRet;
//extract the four corner points
nStartX = barData[0].rcBarLocation.left;
nStartY = barData[0].rcBarLocation.top;
nWidth = barData[0].rcBarLocation.right - nStartX;
nHeight = barData[0].rcBarLocation.bottom - nStartY;
p1.x = (nStartX & 0xffff);
p1.y = (nStartX >> 16);
p2.x = (nStartY & 0xffff);
p2.y = (nStartY >> 16);
p3.x = (nWidth & 0xffff);
p3.y = (nWidth >> 16);
p4.x = (nHeight & 0xffff);
p4.y = (nHeight >> 16);
//Find the barcode center
ComputeBarcodeCenter(&p1, &p2, &p3, &p4, &nCx, &nCy);
//Find the barcode angle
ComputeBarcodeAngle(&p1, &p2, &p3, &p4, &nBarAngle);
//Calculte Image skew angle
ComputeImageAngleToRef(nRefCx, nRefCy, RefWidth, RefHeight,
nCx, nCy, pLeadBitmap->Width, pLeadBitmap->Height,
nBarAngle, &nImageAngle);
//Free barcode data buffer
L_BarCodeFree(&barData);
//rotate the image in the oppiste direction of the skew angle to fix it
return L_RotateBitmap(pLeadBitmap, -nImageAngle, 0, RGB(255,255,255));
}

Imports Leadtools
Imports Leadtools.Document
Imports Leadtools.Twain
Imports Leadtools.WinForms
Imports Leadtools.ImageProcessing.Core

Public Class Form1

Public m_strSavePath As String = "C:\"
Public WithEvents twain As TwainSession
Public document As RasterDocumentEngine

Dim deskew As New DeskewCommand
Dim despeckle As New DespeckleCommand
Dim dotRemove As New DotRemoveCommand
Dim holepunchRemove As New HolePunchRemoveCommand
Dim lineRemove As New LineRemoveCommand

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles MyBase.Load
'Unlock support for these features
RasterSupport.Unlock(RasterSupportType.Ocr, "")
RasterSupport.Unlock(RasterSupportType.Document, "")
RasterSupport.Unlock(RasterSupportType.OcrPdfOutput, "")

'Initialize OCR object
RasterDocumentEngine.EnginePath = "C:\Program Files\LEAD
Technologies\LEADTOOLS OCR Runtime 15\Bin\Common\OCR"
document = RasterDocumentEngine.Instance
document.Startup()
document.RecognitionDataFileName = Application.StartupPath + "\
DataFile.rdf"
Dim sro As Document.RasterDocumentResultOptions =
document.SaveResultOptions
sro.Format = RasterDocumentFormatType.Pdf
sro.FormatLevel = RasterDocumentFormatLevel.Full
document.SaveResultOptions = sro

'Initalize Twain object
twain = New TwainSession
twain.Startup(Me, "Manufacturer", "Product Family", "Version", "Application",
TwainStartupFlags.None)

'Initialize DotRemove
dotRemove.Flags =
DotRemoveCommandFlags.UseDiagonals Or
DotRemoveCommandFlags.UseSize
dotRemove.MaximumDotHeight = 8
dotRemove.MaximumDotWidth = 8
dotRemove.MinimumDotHeight = 2
dotRemove.MinimumDotWidth = 2

'Initialize HolePunchRemove
holepunchRemove.Flags = HolePunchRemoveCommandFlags.UseDpi Or
HolePunchRemoveCommandFlags.UseCount Or _
HolePunchRemoveCommandFlags.UseLocation
holepunchRemove.Location = HolePunchRemoveCommandLocation.Left

'Initialize LineRemove
lineRemove.MaximumLineWidth = 9
lineRemove.MinimumLineLength = 400
lineRemove.Wall = 15
lineRemove.MaximumWallPercent = 10
lineRemove.Variance = 3
lineRemove.GapLength = 3
End Sub

Private Sub Form1_FormClosing(ByVal sender As System.Object, ByVal e As
System.Windows.Forms.FormClosingEventArgs) Handles
MyBase.FormClosing
'Free resources
document.Shutdown()
twain.Shutdown()
End Sub

Private Sub _miOutputDir_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles _miOutputDir.Click
Dim dlg As New System.Windows.Forms.FolderBrowserDialog
If (dlg.ShowDialog() = Windows.Forms.DialogResult.OK) Then
m_strSavePath = dlg.SelectedPath + "\"
End If
End Sub

Private Sub _miSelectScanner_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles _miSelectScanner.Click
twain.SelectSource(String.Empty)
End Sub

Private Sub _miScan_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles _miScan.Click
'Delete previous OCR meta file.
If (System.IO.File.Exists(document.RecognitionDataFileName)) Then
System.IO.File.Delete(document.RecognitionDataFileName)
End If

'Remove all previous pages
While document.PageCount > 0
document.RemovePage(0)
End While

'Scan images
twain.Acquire(TwainUserInterfaceFlags.Show)

'OCR all the images
document.Recognize(0, document.PageCount, Nothing)

'Save the results to PDF
document.SaveResultsToFile(m_strSavePath + "Results.pdf")
End Sub

Private Sub twain_AcquirePage(ByVal sender As Object, ByVal e As
Leadtools.Twain.TwainAcquirePageEventArgs) Handles twain.
AcquirePage
'Deskew
deskew.Run(e.Image)

'Despeckle
despeckle.Run(e.Image)

'Dot Remove
dotRemove.Run(e.Image)

'Hole Punch Remove
holepunchRemove.Run(e.Image)

'Vertical Line Remove
lineRemove.Type = LineRemoveCommandType.Vertical
lineRemove.Run(e.Image)

'Horizontal Line Remove
lineRemove.Type = LineRemoveCommandType.Horizontal
lineRemove.Run(e.Image)

'Add page to the OCR engine
document.AddPage(e.Image, 1)
End Sub
End Class

Visual Basic
' Create the engine instance
Using ocrEngine As IOcrEngine = _
OcrEngineManager.CreateEngine(OcrEngineType.Plus, False)
' Startup the engine
ocrEngine.Startup(Nothing, Nothing, Nothing)
' Convert the multi-page TIF image to a PDF document
ocrEngine.AutoRecognizeManager.Run( _
"C:\LEADTOOLS 16\Images\Ocr.tif", _
"C:\LEADTOOLS 16\Images\Document.pdf", _
Nothing, _
OcrDocumentFormat.PdfA, _
Nothing)
End Using

C#
// Create the engine instance
using(IOcrEngine ocrEngine =
OcrEngineManager.CreateEngine(OcrEngineType.Plus, false))
{
// Startup the engine
ocrEngine.Startup(null, null, null);
// Convert the multi-page TIF image to a PDF document
ocrEngine.AutoRecognizeManager.Run( @"C:\LEADTOOLS 16\Images\Ocr.tif",
@"C:\LEADTOOLS 16\Images\Document.pdf",
null,
OcrDocumentFormat.PdfA, null);
}