Description
Measure image skew
Syntax
| Visual Basic |
|---|
Public Function MeasureSkew() As Double |
Return Type
Result range is from -45 degrees to 45 degrees. Value is negative, if image skewed counterclockwise and positive if image is skewed clockwise.
Remarks
Measures image or ROI skew relative to the nearest vertical or horizontal axis.
Level of confidence in percent is set in rConfidence.
Example
Measure Skew and Rotation
| VB Sample (Visual Basic) |  Copy Code |
|---|---|
Public Sub T_MeasureSkewAndRotation(ByRef Tools As CiTools) Dim nSkew, eRot nSkew = Tools.MeasureSkew Debug.Print "Skew=" & nSkew & " Confidence=" & Tools.rConfidence & "%" eRot = Tools.MeasureRotation Debug.Print "Rotation=" & _ Switch(eRot = ciRotUnknown, "Unknown", _ eRot = ciRotNone, "None", _ eRot = ciRotLeft, "TurnedLeft", _ eRot = ciRotRight, "TurnedRight", _ eRot = ciRotUpsideDown, "UpsideDown", _ eRot = ciRotLeftOrRight, "TurnedLeftOrRight", _ eRot = ciRotPortrait, "Portrait") & _ " Confidence=" & Tools.rConfidence & "%" End Sub | |