/// <summary>
/// Segments the image using GrabCut algorithm.
/// The input is 8-bit 3-channel image.
/// </summary>
/// <param name="mask">Input/output 8-bit single-channel mask.
/// The mask is initialized by the function when mode is set to GC_INIT_WITH_RECT.
/// Its elements may have Cv2.GC_BGD / Cv2.GC_FGD / Cv2.GC_PR_BGD / Cv2.GC_PR_FGD</param>
/// <param name="rect">ROI containing a segmented object. The pixels outside of the ROI are
/// marked as "obvious background". The parameter is only used when mode==GC_INIT_WITH_RECT.</param>
/// <param name="bgdModel">Temporary array for the background model. Do not modify it while you are processing the same image.</param>
/// <param name="fgdModel">Temporary arrays for the foreground model. Do not modify it while you are processing the same image.</param>
/// <param name="iterCount">Number of iterations the algorithm should make before returning the result.
/// Note that the result can be refined with further calls with mode==GC_INIT_WITH_MASK or mode==GC_EVAL .</param>
/// <param name="mode">Operation mode that could be one of GrabCutFlag value.</param>
public void GrabCut(InputOutputArray mask, Rect rect,
InputOutputArray bgdModel, InputOutputArray fgdModel,
int iterCount, GrabCutFlag mode)
{
Cv2.GrabCut(this, mask, rect, bgdModel, fgdModel, iterCount, mode);
}
/// <summary>
/// Segments the image using GrabCut algorithm
/// </summary>
/// <param name="img">Input 8-bit 3-channel image.</param>
/// <param name="mask">Input/output 8-bit single-channel mask.
/// The mask is initialized by the function when mode is set to GC_INIT_WITH_RECT.
/// Its elements may have Cv2.GC_BGD / Cv2.GC_FGD / Cv2.GC_PR_BGD / Cv2.GC_PR_FGD</param>
/// <param name="rect">ROI containing a segmented object. The pixels outside of the ROI are
/// marked as "obvious background". The parameter is only used when mode==GC_INIT_WITH_RECT.</param>
/// <param name="bgdModel">Temporary array for the background model. Do not modify it while you are processing the same image.</param>
/// <param name="fgdModel">Temporary arrays for the foreground model. Do not modify it while you are processing the same image.</param>
/// <param name="iterCount">Number of iterations the algorithm should make before returning the result.
/// Note that the result can be refined with further calls with mode==GC_INIT_WITH_MASK or mode==GC_EVAL .</param>
/// <param name="mode">Operation mode that could be one of GrabCutFlag value.</param>
public static void GrabCut(InputArray img, InputOutputArray mask, Rect rect,
InputOutputArray bgdModel, InputOutputArray fgdModel,
int iterCount, GrabCutFlag mode)
{
if (img == null)
throw new ArgumentNullException("img");
if (mask == null)
throw new ArgumentNullException("mask");
if (bgdModel == null)
throw new ArgumentNullException("bgdModel");
if (fgdModel == null)
throw new ArgumentNullException("fgdModel");
img.ThrowIfDisposed();
mask.ThrowIfNotReady();
bgdModel.ThrowIfNotReady();
fgdModel.ThrowIfNotReady();
NativeMethods.imgproc_grabCut(img.CvPtr, mask.CvPtr, rect,
bgdModel.CvPtr, fgdModel.CvPtr, iterCount, (int)mode);
mask.Fix();
bgdModel.Fix();
fgdModel.Fix();
}
