grabCut fist impl and test

modules/python/api

@@ -1644,6 +1644,15 @@ HOGDetectMultiScale CvSeq*
   int nbins 9
   int gammaCorrection 1
 
+grabCut
+  CvArr image
+  CvArr mask
+  CvRect rect
+  CvArr bgdModel
+  CvArr fgdModel
+  int iterCount
+  int mode
+
 # These functions are handwritten in cv.cpp; they appear here as 'doconly' declarations
 # so that their documentation can be auto-generated
 ApproxPoly  /doconly

modules/python/cv.cpp

@@ -3763,6 +3763,21 @@ static CvSeq* cvHOGDetectMultiScale( const CvArr* image, CvMemStorage* storage,
     return seq;
 }
 
+static void cvgrabCut(CvArr *image,
+                      CvArr *mask,
+                      CvRect rect,
+                      CvArr *bgdModel,
+                      CvArr *fgdModel,
+                      int iterCount,
+                      int mode)
+{
+  cv::Mat _image = cv::cvarrToMat(image);
+  cv::Mat _mask = cv::cvarrToMat(mask);
+  cv::Mat _bgdModel = cv::cvarrToMat(bgdModel);
+  cv::Mat _fgdModel = cv::cvarrToMat(fgdModel);
+  grabCut(_image, _mask, rect, _bgdModel, _fgdModel, iterCount, mode);
+}
+
 static int zero = 0;
 
 /************************************************************************/
@@ -3826,10 +3841,13 @@ static int to_ok(PyTypeObject *to)
 
 #define MKTYPE(NAME)  do { NAME##_specials(); if (!to_ok(&NAME##_Type)) return; } while (0)
 
+using namespace cv;
+
 extern "C"
 #if defined WIN32 || defined _WIN32
 __declspec(dllexport)
 #endif
+
 void initcv()
 {
   PyObject *m, *d;
@@ -3939,6 +3957,14 @@ void initcv()
   PUBLISH(CV_PTLOC_VERTEX);
   PUBLISH(CV_PTLOC_OUTSIDE_RECT);
 
+  PUBLISH(GC_BGD);
+  PUBLISH(GC_FGD);
+  PUBLISH(GC_PR_BGD);
+  PUBLISH(GC_PR_FGD);
+  PUBLISH(GC_INIT_WITH_RECT);
+  PUBLISH(GC_INIT_WITH_MASK);
+  PUBLISH(GC_EVAL);
+
 #include "generated2.i"
 
 #if 0