Fixed opencv#10433

arthur-williams · alalek · commit 1f4b8c2785cd · 2017-12-28T02:32:43.000Z
backport opencv#10435
diff --git a/modules/core/src/matmul.cpp b/modules/core/src/matmul.cpp
@@ -2994,6 +2994,7 @@ PCA& PCA::computeVar(InputArray _data, InputArray __mean, int flags, double reta
     {
         CV_Assert( _mean.size() == mean_sz );
         _mean.convertTo(mean, ctype);
+        covar_flags |= CV_COVAR_USE_AVG;
     }
 
     calcCovarMatrix( data, covar, mean, covar_flags, ctype );

Original file line number	Diff line number	Diff line change
`@@ -2994,6 +2994,7 @@ PCA& PCA::computeVar(InputArray _data, InputArray __mean, int flags, double reta`
`2994`	`2994`	`{`
`2995`	`2995`	`CV_Assert( _mean.size() == mean_sz );`
`2996`	`2996`	`_mean.convertTo(mean, ctype);`
	`2997`	`+ covar_flags \|= CV_COVAR_USE_AVG;`
`2997`	`2998`	`}`
`2998`	`2999`
`2999`	`3000`	`calcCovarMatrix( data, covar, mean, covar_flags, ctype );`