internal static extern void cvFloodFill(
Arr image,
Point seed_point,
Scalar new_val,
Scalar lo_diff,
Scalar up_diff,
out ConnectedComp comp,
FloodFillFlags flags,
Arr mask);
/// <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,
FloodFillFlags flags = FloodFillFlags.Link4)
{
if (image == null)
throw new ArgumentNullException(nameof(image));
if (mask == null)
throw new ArgumentNullException(nameof(mask));
image.ThrowIfNotReady();
mask.ThrowIfNotReady();
Scalar loDiff0 = loDiff.GetValueOrDefault(new Scalar());
Scalar upDiff0 = upDiff.GetValueOrDefault(new Scalar());
int ret = NativeMethods.imgproc_floodFill(image.CvPtr, mask.CvPtr, seedPoint,
newVal, out rect, loDiff0, upDiff0, (int)flags);
image.Fix();
mask.Fix();
return ret;
}
/// <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,
FloodFillFlags flags = FloodFillFlags.Link4)
{
return Cv2.FloodFill(this, mask, seedPoint,
newVal, out rect, loDiff, upDiff, flags);
}
