Merge pull request #3830 from NaerChang:issue.3710

10 years ago · 259a54a6dd
parent a1f86d01e2 cdc9bc397d
commit 259a54a6dd
1 changed files with 1 additions and 1 deletions
--- a/modules/objdetect/src/cascadedetect.cpp
+++ b/modules/objdetect/src/cascadedetect.cpp
@ -1268,7 +1268,7 @@ void CascadeClassifierImpl::detectMultiScaleNoGrouping( InputArray _image, std::
        scales.push_back((float)factor);
    }

-    if( !featureEvaluator->setImage(gray, scales) )
+    if( scales.size() == 0 || !featureEvaluator->setImage(gray, scales) )
        return;

    // OpenCL code