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added another contour perimeter test and fixed bug #216

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This commit is contained in:
Vadim Pisarevsky
2012-03-26 17:00:48 +00:00
parent 26691e00d4
commit 903c05db1a
3 changed files with 91 additions and 9 deletions
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4
modules/imgproc/src/shapedescr.cpp
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@@ -108,6 +108,10 @@ cvArcLength( const void *array, CvSlice slice, int is_closed )
reader.prev_elem = reader.ptr;
CV_NEXT_SEQ_ELEM( contour->elem_size, reader );
// Bugfix by Axel at rubico.com 2010-03-22, affects closed slices only
// wraparound not handled by CV_NEXT_SEQ_ELEM
if( is_closed && i == count - 2 )
cvSetSeqReaderPos( &reader, slice.start_index );
buffer.data.fl[j] = dx * dx + dy * dy;
if( ++j == N || i == count - 1 )