if (thr_nn > thr_nn_valid)
thr_nn_valid = thr_nn;
}
void FerNNClassifier::show(){
Mat examples((int)pEx.size()*pEx[0].rows, pEx[0].cols, CV_8U);
double minval;
Mat ex(pEx[0].rows, pEx[0].cols, pEx[0].type());
for (int i=0;i<pEx.size();i++){
minMaxLoc(pEx[i], &minval);
pEx[i].copyTo(ex);
ex = ex - minval;
Mat tmp = examples.rowRange(Range(i*pEx[i].rows, (i+1)*pEx[i].rows));
ex.convertTo(tmp, CV_8U);
}
imshow("Examples", examples);
}