Wrong value of getVarCount in SVM

Yerzhan
1 ●1

berak
32993 ●7 ●81 ●312

I am using opencv 3.1 on Win 8.1 with Visual Studio 2015 this code

Ptr<ml::SVM> svm = ml::SVM::create();
svm->load<ml::SVM>("svm_filename");
int varcnt=svm->getVarCount();

Value of varcnt is -842150451

But in file "svm_filename" var_count: 510

Because of this i have error opencv error: assertion failed (samples.cols==var_count

1 answer

berak
32993 ●7 ●81 ●312

Algorithm::load returns a new object , you should load your SVM like this:

Ptr<ml::SVM> svm = Algorithm::load<ml::SVM>("svm_filename");

your example above discards the data read from file, and does not initialize your svm properly.

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Asked: 2016-04-08 00:21:56 -0600

Seen: 195 times

Last updated: Apr 08 '16