fixed bug with crash in HoughCircles & HoughLines when no circles/lines are detected (ticket #1066)

98f090e3 · Vadim Pisarevsky · 7d350280 · 98f090e3
Commit 98f090e3 authored May 18, 2011 by Vadim Pisarevsky
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hough.cpp modules/imgproc/src/hough.cpp +1 -1

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--- a/modules/imgproc/src/hough.cpp
+++ b/modules/imgproc/src/hough.cpp
@@ -1092,7 +1092,7 @@ const int STORAGE_SIZE = 1 << 12;

 static void seqToMat(const CvSeq* seq, OutputArray& _arr)
 {
-    if( seq )
+    if( seq && seq->total > 0 )
    {
        _arr.create(1, seq->total, seq->flags, -1, true);
        Mat arr = _arr.getMat();