public static Bitmap Preprocess(
	Bitmap image,
	bool grayscale,
	ref bool edges,
	bool threshold,
	double scaleWidth,
	double scaleHeight,
	out Point offset
)

Public Shared Function Preprocess ( _
	image As Bitmap, _
	grayscale As Boolean, _
	ByRef edges As Boolean, _
	threshold As Boolean, _
	scaleWidth As Double, _
	scaleHeight As Double, _
	<OutAttribute> ByRef offset As Point _
) As Bitmap

public:
static Bitmap^ Preprocess(
	Bitmap^ image, 
	bool grayscale, 
	bool% edges, 
	bool threshold, 
	double scaleWidth, 
	double scaleHeight, 
	[OutAttribute] Point% offset
)