'Declaration
 
Public Sub DetectSkew( _
   ByRef slope As Integer, _
   ByRef orientation As ImGearRecOrientationMode _
) 

'Usage
 
Dim instance As ImGearRecImage
Dim slope As Integer
Dim orientation As ImGearRecOrientationMode
 
instance.DetectSkew(slope, orientation)

public void DetectSkew( 
   out int slope,
   out ImGearRecOrientationMode orientation
)

public: void DetectSkew( 
   [PARAMFLAG::Out] int slope,
   [PARAMFLAG::Out] ImGearRecOrientationMode orientation
) 

public:
void DetectSkew( 
   [Out] int slope,
   [Out] ImGearRecOrientationMode orientation
) 

Parameters

slope

Variable to receive detected skew of the image.

orientation

Variable to receive detected orientation of the image.

Depending on the current setting of the Image deskewing and Image rotation modes, this method returns either with the detected image skew / orientation or with the current values of these settings.

When the image is not bitonal, in some rare cases Preprocess method can deskew the image more accurately than DetectSkew / Deskew methods. This is because DetectSkew uses a simpler and faster binarization algorithm than the Preprocess. The latter can realize that the calculated slope value is unreliable and then binarize the image again with a more precise method and repeat the skew detection.

Reference