AutoDeskew Method (CiRepair)

Visual Basic
C#
Delphi
JScript
C++/CLI

'Declaration
 
Public Function AutoDeskew() As System.Double

'Usage
 
Dim instance As CiRepair
Dim value As System.Double
 
value = instance.AutoDeskew()

public System.double AutoDeskew()

public function AutoDeskew(): System.Double;

public function AutoDeskew() : System.double;

public:
System.double AutoDeskew();

Return Value

The returned value is in the range from -45 degrees to 45 degrees. If the value is negative, then the image was skewed counterclockwise.

Deskews image to the nearest vertical or horizontal axis, on object.Image content. If object.Image.IsZone is true then object.Image.Parent is deskewed based on data within object.Image.Zone rectangle.

C#
VB.NET

void RepairMethods(string imageFile, string imageFileOut)
{
    // Open image file
    CiServer ci = Inlite.ClearImageNet.Server.GetThreadServer();
    CiRepair Repair = ci.CreateRepair();
    Repair.Image.Open(imageFile, 1);
    // Do Processing
    Repair.AutoDeskew();             // Use AutoDeskew before AutoRotate
    Repair.AutoRotate();
    // Repair.AutoCrop(10, 10, 10, 10); // Do not use AutoCrop with AutoRegister or BorderExtract
    // Repair.AutoRegister(100, 100);   // Do not use AutoRegister with AutoCrop or BorderExtract
    Repair.AdvancedBinarize(0, 0, 0);
    Repair.BorderExtract(EBorderExtractFlags.ciBexBorderDeskewCrop, EBorderExtractAlgorithm.ciBeaCleaner);
    Repair.RemovePunchHoles();
    Repair.SmoothCharacters(ESmoothType.ciSmoothDarkenEdges);
    Repair.CleanNoise(3);            // Use CleanNoiseExt to remove white noise
    // Repair.CleanNoiseExt(ECleanNoiseFlags.ciCnxBlackNoise | ECleanNoiseFlags.ciCnxWhiteNoise, 3, 3, 10, 0);
    Repair.pLineCurvature = ELineCurvature.ciCurvLow;
    Repair.pMaxLineAngle = 5;
    Repair.pMaxLineGap = 5;
    Repair.pMinLineLength = 200;
    Repair.DeleteLines(ELineDirection.ciLineVertAndHorz, true);
    Repair.Image.SaveAs(imageFileOut, EFileFormat.ciEXT);
}

Sub RepairMethods(imageFile As String, imageFileOut As String)
    ' Open image file
    Dim ci As CiServer = Inlite.ClearImageNet.Server.GetThreadServer()
    Dim Repair As CiRepair = ci.CreateRepair()
    Repair.Image.Open(imageFile, 1)
    ' Do Processing
    Repair.AutoDeskew()             ' Use AutoDeskew before AutoRotate
    Repair.AutoRotate()
    ' Repair.AutoCrop(10, 10, 10, 10) ' Do not use AutoCrop with AutoRegister or BorderExtract
    ' Repair.AutoRegister(100, 100)   ' Do not use AutoRegister with AutoCrop or BorderExtract
    Repair.AdvancedBinarize(0, 0, 0)
    Repair.BorderExtract(EBorderExtractFlags.ciBexBorderDeskewCrop, EBorderExtractAlgorithm.ciBeaCleaner)
    Repair.RemovePunchHoles()
    Repair.SmoothCharacters(ESmoothType.ciSmoothDarkenEdges)
    Repair.CleanNoise(3)            ' Use CleanNoiseExt to remove white noise
    ' Repair.CleanNoiseExt(ECleanNoiseFlags.ciCnxBlackNoise + ECleanNoiseFlags.ciCnxWhiteNoise, 3, 3, 10, 0)
    Repair.pLineCurvature = ELineCurvature.ciCurvLow
    Repair.pMaxLineAngle = 5
    Repair.pMaxLineGap = 5
    Repair.pMinLineLength = 200
    Repair.DeleteLines(ELineDirection.ciLineVertAndHorz, True)
    Repair.Image.SaveAs(imageFileOut, EFileFormat.ciEXT)
End Sub

Reference

CiRepair Class
CiRepair Members