Merge pull request #3830 from NaerChang:issue.3710

259a54a6 · Vadim Pisarevsky · a1f86d01 · cdc9bc39 · 259a54a6
Commit 259a54a6 authored Mar 16, 2015 by Vadim Pisarevsky
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cascadedetect.cpp modules/objdetect/src/cascadedetect.cpp +1 -1

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--- 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