java - Finding best match by minMaxLoc returned values OpenCV with a specific level of thershold -

i want find best match level of threshold.

here did values staying @ 0.

cvmatchtemplate(src, tmp, result, cv_tm_ccorr_normed); cvpoint minloc = new cvpoint(); cvpoint maxloc = new cvpoint(); doublepointer min_val = new doublepointer(); doublepointer max_val = new doublepointer();  cvminmaxloc(result,min_val, max_val, minloc, maxloc, null); 

i don't double pointers required mothode. min_value , max_value staying @ 0 cant find best matches.

thanks in advanced.using javacv.

in example here used primitive doubles, not double type , defined arrays, not objects. so, why don't give shot , let know if make difference.

cvmatchtemplate(src, tmp, result, cv_tm_ccorr_normed);  double[] min_val = new double[2]; double[] max_val = new double[2]; cvpoint minloc = new cvpoint(); cvpoint maxloc = new cvpoint();  cvminmaxloc(result, min_val, max_val, minloc, maxloc,null); 

__update__

i found following code here

// match template function opencv cvmatchtemplate(src, tmp, result, cv_tm_ccorr_normed);  // double[] min_val = new double[2]; // double[] max_val = new double[2]; doublepointer min_val = new doublepointer(); doublepointer max_val = new doublepointer();  cvpoint minloc = new cvpoint(); cvpoint maxloc = new cvpoint();  cvminmaxloc(result, min_val, max_val, minloc, maxloc, null); 

pay attention how instantiated doublepointer() without params. if not help, not sure thing about. hope works.