mexopencv  3.4.1
MEX interface for OpenCV library
writeOpticalFlow.cpp
Go to the documentation of this file.
1 
8 #include "mexopencv.hpp"
9 #include "opencv2/optflow.hpp"
10 using namespace std;
11 using namespace cv;
12 using namespace cv::optflow;
13 
21 void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
22 {
23  // Check the number of arguments
24  nargchk(nrhs==2 && nlhs<=1);
25 
26  // Argument vector
27  vector<MxArray> rhs(prhs, prhs+nrhs);
28 
29  // Process
30  string path(rhs[0].toString());
31  Mat flow(rhs[1].toMat(CV_32F));
32  bool success = writeOpticalFlow(path, flow);
33  if (nlhs > 0)
34  plhs[0] = MxArray(success);
35  else if (!success)
36  mexErrMsgIdAndTxt("mexopencv:error", "Failed to write to disk");
37 }
bool writeOpticalFlow(const String &path, InputArray flow)
STL namespace.
struct mxArray_tag mxArray
Forward declaration for mxArray.
Definition: matrix.h:259
#define CV_32F
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
Main entry called from Matlab.
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.
Global constant definitions.
cv::Mat toMat() const