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/* compile with
rm liblagrcv.a
gcc -c lagrcv.cpp
ar rc liblagrcv.a lagrcv.o
ranlib liblagrcv.a
mex7 calcTextureMex.cc -L/home/ikkjin/LagrMatlab/opencv/matlab -llagrcv -I/home/ikkjin/LagrMatlab/opencv/matlab/
*/
#include "mex.h"
#include "lagrcv.h"
#include <stdio.h>
#include <math.h>
#ifndef MAX_LEVEL
# define MAX_LEVEL 5
#endif
// TODO: add number of corners parameter
void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[]) {
// usage: [newFeaturePnt validFlag ] =
// calcOptFlowLKPyrWInitMex2(Ipyr, Jpyr, featurePnt, winSize, accuracy_th, max_iter, initFPnt)
// Ipyr, IdxPyr, IdyPyr, Jpyr: levelx1 size cell.
// featurePnt 2xn int
// winSize c_level int
// c_xx c_xy c_yy: image size double*
// image must be double
const mxArray* imgArray;
int* imdims;
const int *curImgDims;
const int *nFeatures;
double *iP[MAX_LEVEL], *jP[MAX_LEVEL];
double *fPnt, *newFPnt, *initFPnt;
char* valid;
double accuracy_th;
int winSize, max_iter;
const int *cellDims = mxGetDimensions(prhs[0]);
accuracy_th=(double)mxGetScalar(prhs[4]);
max_iter=(int)mxGetScalar(prhs[5]);
initFPnt=(double*)mxGetPr(prhs[6]);
winSize = (int)mxGetScalar(prhs[3]);
fPnt=(double*)mxGetPr(prhs[2]);
nFeatures=mxGetDimensions(prhs[2]);
imdims=(int*)malloc(sizeof(int)*cellDims[0]*2);
for(int i=0; i<cellDims[0]; i++){
//imgArray=mxGetCell(prhs[0],i);
//curImgDims = mxGetDimensions(imgArray);
curImgDims = mxGetDimensions(mxGetCell(prhs[0],i));
imdims[i*2+0]= curImgDims[0];
imdims[i*2+1]= curImgDims[1];
//imdims[i][1] = curImgDims[1];
iP[i]= (double*)mxGetPr(mxGetCell(prhs[0],i));
jP[i]= (double*)mxGetPr(mxGetCell(prhs[1],i));
}
plhs[0] = mxCreateNumericMatrix(nFeatures[0], nFeatures[1], mxDOUBLE_CLASS, mxREAL);
plhs[1] = mxCreateNumericMatrix(1, nFeatures[1], mxUINT8_CLASS, mxREAL);
newFPnt = (double*)mxGetPr(plhs[0]);
valid = (char*)mxGetPr(plhs[1]);
//idx convert from matlab to c
for(int i=0; i<nFeatures[1]; i++){
fPnt[i*2]=fPnt[i*2]-1;
fPnt[i*2+1]=fPnt[i*2+1]-1;
initFPnt[i*2]=initFPnt[i*2]-1;
initFPnt[i*2+1]=initFPnt[i*2+1]-1;
valid[i]=1;
}
calcPyrLKTrackWInit( iP, jP, imdims, cellDims[0], fPnt, nFeatures[1], winSize,
newFPnt, initFPnt, valid, accuracy_th, max_iter);
//idx convert from matlab to c
for(int i=0; i<nFeatures[1]*2; i++){
fPnt[i]=fPnt[i]+1;
initFPnt[i]=initFPnt[i]+1;
newFPnt[i]=newFPnt[i]+1;
}
free(imdims);
//free(iP);
//free(jP);
}
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