19 void mexFunction(
int nlhs, mxArray *plhs[], 
int nrhs, 
const mxArray *prhs[])
    22     nargchk(nrhs>=2 && (nrhs%2)==0 && nlhs<=1);
    25     vector<MxArray> rhs(prhs, prhs+nrhs);
    29     int numberOfDisparities = 64;
    30     int disp12MaxDiff = 1;
    31     for (
int i=2; i<nrhs; i+=2) {
    32         string key(rhs[i].toString());
    33         if (key == 
"MinDisparity")
    34             minDisparity = rhs[i+1].toInt();
    35         else if (key == 
"NumDisparities")
    36             numberOfDisparities = rhs[i+1].toInt();
    37         else if (key == 
"Disp12MaxDiff")
    38             disp12MaxDiff = rhs[i+1].toInt();
    40             mexErrMsgIdAndTxt(
"mexopencv:error",
    41                 "Unrecognized option %s", key.c_str());
    45     Mat disparity(rhs[0].toMat(CV_16S)),
    46         cost(rhs[1].toMat(rhs[1].isInt32() ? CV_32S : CV_16S));
    47     validateDisparity(disparity, cost,
    48         minDisparity, numberOfDisparities, disp12MaxDiff);
 
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
Main entry called from Matlab. 
mxArray object wrapper for data conversion and manipulation. 
void nargchk(bool cond)
Alias for input/ouput arguments number check. 
Global constant definitions.