mexopencv  3.4.1
MEX interface for OpenCV library
isContourConvex.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==1 && nlhs<=1);
24 
25  // Argument vector
26  vector<MxArray> rhs(prhs, prhs+nrhs);
27 
28  // Process
29  bool b = false;
30  if (rhs[0].isNumeric()) {
31  Mat points(rhs[0].toMat(rhs[0].isInt32() ? CV_32S : CV_32F));
32  b = isContourConvex(points);
33  }
34  else if (rhs[0].isCell()) {
35  vector<Point2f> points(rhs[0].toVector<Point2f>());
36  b = isContourConvex(points);
37  }
38  else
39  mexErrMsgIdAndTxt("mexopencv:error", "Invalid points argument");
40  plhs[0] = MxArray(b);
41 }
STL namespace.
struct mxArray_tag mxArray
Forward declaration for mxArray.
Definition: matrix.h:259
#define CV_32F
LIBMWMEX_API_EXTERN_C void mexErrMsgIdAndTxt(const char *identifier, const char *err_msg,...)
Issue formatted error message with corresponding error identifier and return to MATLAB prompt...
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.
bool isContourConvex(InputArray contour)
cv::Mat toMat() const
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
Main entry called from Matlab.