make watershed demo work correctly

2010-12-04 15:35:34 +00:00
parent 9948ed88b0
commit 56d4f875b4
2 changed files with 3 additions and 1 deletions
--- a/samples/cpp/watershed.cpp
+++ b/samples/cpp/watershed.cpp
@@ -86,6 +86,8 @@ int main( int argc, char** argv )
            
            findContours(markerMask, contours, hierarchy, CV_RETR_CCOMP, CV_CHAIN_APPROX_SIMPLE);
            
+            if( contours.empty() )
+                continue;
            Mat markers(markerMask.size(), CV_32S);
            markers = Scalar::all(0);
            int idx = 0;