mexopencv  3.4.1
MEX interface for OpenCV library
multiply.cpp
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1 
8 #include "mexopencv.hpp"
9 using namespace std;
10 using namespace cv;
11 
19 void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
20 {
21  // Check the number of arguments
22  nargchk(nrhs>=2 && (nrhs%2)==0 && nlhs<=1);
23 
24  // Argument vector
25  vector<MxArray> rhs(prhs, prhs+nrhs);
26 
27  // Option processing
28  double scale = 1.0;
29  int dtype = -1;
30  for (int i=2; i<nrhs; i+=2) {
31  string key(rhs[i].toString());
32  if (key == "Scale")
33  scale = rhs[i+1].toDouble();
34  else if (key == "DType")
35  dtype = (rhs[i+1].isChar()) ?
36  ClassNameMap[rhs[i+1].toString()] : rhs[i+1].toInt();
37  else
38  mexErrMsgIdAndTxt("mexopencv:error",
39  "Unrecognized option %s", key.c_str());
40  }
41 
42  // Process
43  Mat src1(rhs[0].toMat()),
44  src2(rhs[1].toMat()),
45  dst;
46  multiply(src1, src2, dst, scale, dtype);
47  plhs[0] = MxArray(dst);
48 }
const ConstMap< std::string, int > ClassNameMap
Translates class name used in MATLAB to equivalent OpenCV depth.
Definition: mexopencv.hpp:27
void multiply(InputArray src1, InputArray src2, OutputArray dst, double scale=1, int dtype=-1)
STL namespace.
struct mxArray_tag mxArray
Forward declaration for mxArray.
Definition: matrix.h:259
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.
T c_str(T... args)
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
Main entry called from Matlab.
Definition: multiply.cpp:19
cv::Mat toMat() const