fixed pca bug for fixed mean input

12 years ago · 81779d8287
parent 2aa5f1bfd1
commit 81779d8287
1 changed files with 2 additions and 1 deletions
--- a/modules/core/src/matmul.cpp
+++ b/modules/core/src/matmul.cpp
@ -2855,8 +2855,9 @@ PCA& PCA::operator()(InputArray _data, InputArray __mean, int flags, int maxComp

    if( _mean.data )
    {
-        CV_Assert( _mean.size() == mean_sz );
+        CV_Assert( _mean.size() == mean_sz );        
        _mean.convertTo(mean, ctype);
+        covar_flags |= CV_COVAR_USE_AVG; 
    }

    calcCovarMatrix( data, covar, mean, covar_flags, ctype );