mexopencv  3.4.1
MEX interface for OpenCV library
watershed.cpp
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1 
8 #include "mexopencv.hpp"
9 #include "opencv2/imgproc.hpp"
10 using namespace std;
11 using namespace cv;
12 
20 void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
21 {
22  // Check the number of arguments
23  nargchk(nrhs==2 && nlhs<=1);
24 
25  // Argument vector
26  vector<MxArray> rhs(prhs, prhs+nrhs);
27 
28  // Process
29  Mat image(rhs[0].toMat(CV_8U)),
30  markers(rhs[1].toMat(CV_32S));
31  watershed(image, markers);
32  plhs[0] = MxArray(markers);
33 }
#define CV_8U
STL namespace.
struct mxArray_tag mxArray
Forward declaration for mxArray.
Definition: matrix.h:259
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
Main entry called from Matlab.
Definition: watershed.cpp:20
void watershed(InputArray image, InputOutputArray markers)
mxArray object wrapper for data conversion and manipulation.
Definition: MxArray.hpp:123
void nargchk(bool cond)
Alias for input/output arguments number check.
Definition: mexopencv.hpp:181
STL class.
#define CV_32S
Global constant definitions.
cv::Mat toMat() const