MatFloodFill Method (InputOutputArray, Point, Scalar, Rect, NullableScalar, NullableScalar, FloodFillFlags)

public int FloodFill(
	InputOutputArray mask,
	Point seedPoint,
	Scalar newVal,
	out Rect rect,
	Nullable<Scalar> loDiff = null,
	Nullable<Scalar> upDiff = null,
	FloodFillFlags flags = FloodFillFlags.Link4
)

Public Function FloodFill ( 
	mask As InputOutputArray,
	seedPoint As Point,
	newVal As Scalar,
	<OutAttribute> ByRef rect As Rect,
	Optional loDiff As Nullable(Of Scalar) = Nothing,
	Optional upDiff As Nullable(Of Scalar) = Nothing,
	Optional flags As FloodFillFlags = FloodFillFlags.Link4
) As Integer

public:
int FloodFill(
	InputOutputArray^ mask, 
	Point seedPoint, 
	Scalar newVal, 
	[OutAttribute] Rect% rect, 
	Nullable<Scalar> loDiff = nullptr, 
	Nullable<Scalar> upDiff = nullptr, 
	FloodFillFlags flags = FloodFillFlags::Link4
)

member FloodFill : 
        mask : InputOutputArray * 
        seedPoint : Point * 
        newVal : Scalar * 
        rect : Rect byref * 
        ?loDiff : Nullable<Scalar> * 
        ?upDiff : Nullable<Scalar> * 
        ?flags : FloodFillFlags 
(* Defaults:
        let _loDiff = defaultArg loDiff null
        let _upDiff = defaultArg upDiff null
        let _flags = defaultArg flags FloodFillFlags.Link4
*)
-> int 

function FloodFill(mask, seedPoint, newVal, rect, loDiff, upDiff, flags);

Parameters

mask

Type: OpenCvSharpInputOutputArray
(For the second function only) Operation mask that should be a single-channel 8-bit image, 2 pixels wider and 2 pixels taller. The function uses and updates the mask, so you take responsibility of initializing the mask content. Flood-filling cannot go across non-zero pixels in the mask. For example, an edge detector output can be used as a mask to stop filling at edges. It is possible to use the same mask in multiple calls to the function to make sure the filled area does not overlap.

seedPoint

Type: OpenCvSharpPoint
Starting point.

newVal

Type: OpenCvSharpScalar
New value of the repainted domain pixels.

rect

Type: OpenCvSharpRect
Optional output parameter set by the function to the minimum bounding rectangle of the repainted domain.

loDiff (Optional)

Type: SystemNullableScalar
Maximal lower brightness/color difference between the currently observed pixel and one of its neighbors belonging to the component, or a seed pixel being added to the component.

upDiff (Optional)

Type: SystemNullableScalar
Maximal upper brightness/color difference between the currently observed pixel and one of its neighbors belonging to the component, or a seed pixel being added to the component.

flags (Optional)

Type: OpenCvSharpFloodFillFlags
Operation flags. Lower bits contain a connectivity value, 4 (default) or 8, used within the function. Connectivity determines which neighbors of a pixel are considered.

Return Value

Reference