/// <summary>
/// Fills a connected component with the given color.
/// Input/output 1- or 3-channel, 8-bit, or floating-point image.
/// It is modified by the function unless the FLOODFILL_MASK_ONLY flag is set in the
/// second variant of the function. See the details below.
/// </summary>
/// <param name="mask">(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.</param>
/// <param name="seedPoint">Starting point.</param>
/// <param name="newVal">New value of the repainted domain pixels.</param>
/// <param name="rect">Optional output parameter set by the function to the
/// minimum bounding rectangle of the repainted domain.</param>
/// <param name="loDiff">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.</param>
/// <param name="upDiff">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.</param>
/// <param name="flags">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. </param>
/// <returns></returns>
public int FloodFill(InputOutputArray mask, Point seedPoint, Scalar newVal,
out Rect rect, Scalar? loDiff = null, Scalar? upDiff = null,
FloodFillFlag flags = FloodFillFlag.Link4)
{
return Cv2.FloodFill(this, mask, seedPoint,
newVal, out rect, loDiff, upDiff, flags);
}
/// <summary>
/// 連結成分を指定した色で塗りつぶす
/// </summary>
/// <param name="image">入力画像．1チャンネルあるいは3チャンネル，8ビットあるいは浮動小数点型．CV_FLOODFILL_MASK_ONLYフラグがセットされたとき以外は，データが書き換えられる．</param>
/// <param name="seedPoint">連結成分の開始点．シードピクセル． </param>
/// <param name="newVal">塗りつぶされる領域の新しいピクセル値（塗りつぶす値）．</param>
/// <param name="loDiff">現在の観測対象ピクセルと，その連結成分に属する隣接ピクセル， またはそのピクセルを連結成分に追加するためのシードピクセルとの，輝度値/色の差（違い）の許容下限値． 8ビットカラー画像のときは，パックされた値． </param>
/// <param name="upDiff">現在の観測対象ピクセルと，その連結成分に属する隣接ピクセル， またはそのピクセルを連結成分に追加するためのシードピクセルとの，輝度値/色の差（違い）の許容上限値． 8ビットカラー画像のときは，パックされた値． </param>
/// <param name="comp">構造体へのポインタ．この関数は，塗りつぶされた領域の情報を構造体に代入する． </param>
/// <param name="flags">操作フラグ．下位ビットは関数内で用いられる連結性に関する値4（デフォルト）または8が入っている．
/// 連結性は，どのピクセルを隣接ピクセルと見なすかを定義する．上位ビットは0，あるいはCv.FLOODFILL_FIXED_RANGE, Cv.FLOODFILL_MASK_ONLY との組み合わせである.</param>
/// <param name="mask">処理用マスク</param>
#else
/// <summary>
/// Fills a connected component with given color.
/// </summary>
/// <param name="image">Input 1- or 3-channel, 8-bit or floating-point image. It is modified by the function unless CV_FLOODFILL_MASK_ONLY flag is set. </param>
/// <param name="seedPoint">The starting point. </param>
/// <param name="newVal">New value of repainted domain pixels. </param>
/// <param name="loDiff">Maximal lower brightness/color difference between the currently observed pixel and one of its neighbor belong to the component or seed pixel to add the pixel to component. In case of 8-bit color images it is packed value. </param>
/// <param name="upDiff">Maximal upper brightness/color difference between the currently observed pixel and one of its neighbor belong to the component or seed pixel to add the pixel to component. In case of 8-bit color images it is packed value. </param>
/// <param name="comp">Pointer to structure the function fills with the information about the repainted domain. </param>
/// <param name="flags">The operation flags. Lower bits contain connectivity value, 4 (by default) or 8, used within the function. Connectivity determines which neighbors of a pixel are considered. Upper bits can be 0 or combination of the flags</param>
/// <param name="mask">Operation mask</param>
#endif
public static void FloodFill(CvArr image, CvPoint seedPoint, CvScalar newVal,
CvScalar loDiff, CvScalar upDiff, out CvConnectedComp comp, FloodFillFlag flags, CvArr mask)
{
if (image == null)
{
throw new ArgumentNullException("image");
}
IntPtr maskPtr = (mask == null) ? IntPtr.Zero : mask.CvPtr;
comp = new CvConnectedComp();
NativeMethods.cvFloodFill(image.CvPtr, seedPoint, newVal, loDiff, upDiff, comp.CvPtr, (int)flags, maskPtr);
}
/// <summary>
/// Fills a connected component with the given color.
/// </summary>
/// <param name="image">Input/output 1- or 3-channel, 8-bit, or floating-point image.
/// It is modified by the function unless the FLOODFILL_MASK_ONLY flag is set in the
/// second variant of the function. See the details below.</param>
/// <param name="mask">(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.</param>
/// <param name="seedPoint">Starting point.</param>
/// <param name="newVal">New value of the repainted domain pixels.</param>
/// <param name="rect">Optional output parameter set by the function to the
/// minimum bounding rectangle of the repainted domain.</param>
/// <param name="loDiff">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.</param>
/// <param name="upDiff">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.</param>
/// <param name="flags">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. </param>
/// <returns></returns>
public static int FloodFill(InputOutputArray image, InputOutputArray mask,
Point seedPoint, Scalar newVal, out Rect rect,
Scalar? loDiff = null, Scalar? upDiff = null,
FloodFillFlag flags = FloodFillFlag.Link4)
{
if (image == null)
throw new ArgumentNullException("image");
if (mask == null)
throw new ArgumentNullException("mask");
image.ThrowIfNotReady();
mask.ThrowIfNotReady();
Scalar loDiff0 = loDiff.GetValueOrDefault(new Scalar());
Scalar upDiff0 = upDiff.GetValueOrDefault(new Scalar());
CvRect rect0;
int ret = NativeMethods.imgproc_floodFill(image.CvPtr, mask.CvPtr, seedPoint,
newVal, out rect0, loDiff0, upDiff0, (int)flags);
rect = rect0;
image.Fix();
mask.Fix();
return ret;
}
/// <summary>
/// 連結成分を指定した色で塗りつぶす
/// </summary>
/// <param name="image">入力画像．1チャンネルあるいは3チャンネル，8ビットあるいは浮動小数点型．CV_FLOODFILL_MASK_ONLYフラグがセットされたとき以外は，データが書き換えられる．</param>
/// <param name="seedPoint">連結成分の開始点．シードピクセル． </param>
/// <param name="newVal">塗りつぶされる領域の新しいピクセル値（塗りつぶす値）．</param>
/// <param name="loDiff">現在の観測対象ピクセルと，その連結成分に属する隣接ピクセル， またはそのピクセルを連結成分に追加するためのシードピクセルとの，輝度値/色の差（違い）の許容下限値． 8ビットカラー画像のときは，パックされた値． </param>
/// <param name="upDiff">現在の観測対象ピクセルと，その連結成分に属する隣接ピクセル， またはそのピクセルを連結成分に追加するためのシードピクセルとの，輝度値/色の差（違い）の許容上限値． 8ビットカラー画像のときは，パックされた値． </param>
/// <param name="comp">構造体へのポインタ．この関数は，塗りつぶされた領域の情報を構造体に代入する． </param>
/// <param name="flags">操作フラグ．下位ビットは関数内で用いられる連結性に関する値4（デフォルト）または8が入っている．
/// 連結性は，どのピクセルを隣接ピクセルと見なすかを定義する．上位ビットは0，あるいはCv.FLOODFILL_FIXED_RANGE, Cv.FLOODFILL_MASK_ONLY との組み合わせである.</param>
#else
/// <summary>
/// Fills a connected component with given color.
/// </summary>
/// <param name="image">Input 1- or 3-channel, 8-bit or floating-point image. It is modified by the function unless CV_FLOODFILL_MASK_ONLY flag is set. </param>
/// <param name="seedPoint">The starting point. </param>
/// <param name="newVal">New value of repainted domain pixels. </param>
/// <param name="loDiff">Maximal lower brightness/color difference between the currently observed pixel and one of its neighbor belong to the component or seed pixel to add the pixel to component. In case of 8-bit color images it is packed value. </param>
/// <param name="upDiff">Maximal upper brightness/color difference between the currently observed pixel and one of its neighbor belong to the component or seed pixel to add the pixel to component. In case of 8-bit color images it is packed value. </param>
/// <param name="comp">Pointer to structure the function fills with the information about the repainted domain. </param>
/// <param name="flags">The operation flags. Lower bits contain connectivity value, 4 (by default) or 8, used within the function. Connectivity determines which neighbors of a pixel are considered. Upper bits can be 0 or combination of the flags</param>
#endif
public static void FloodFill(CvArr image, CvPoint seedPoint, CvScalar newVal,
CvScalar loDiff, CvScalar upDiff, out CvConnectedComp comp, FloodFillFlag flags)
{
FloodFill(image, seedPoint, newVal, loDiff, upDiff, out comp, flags, null);
}
