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fixed drawKeypoints (keypoint orientation)

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This commit is contained in:
Maria Dimashova
2011-05-30 09:11:27 +00:00
parent 9c2efd6cbd
commit 8a61375875
1 changed files with 3 additions and 2 deletions
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5
modules/features2d/src/draw.cpp
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@@ -67,8 +67,9 @@ static inline void _drawKeypoint( Mat& img, const KeyPoint& p, const Scalar& col
if( p.angle != -1 ) if( p.angle != -1 )
{ {
float srcAngleRad = p.angle*(float)CV_PI/180.f; float srcAngleRad = p.angle*(float)CV_PI/180.f;
Point orient(cvRound(cos(srcAngleRad)*radius), Point orient( cvRound( cos(srcAngleRad)*radius ),
cvRound(sin(srcAngleRad)*radius)); cvRound(-sin(srcAngleRad)*radius ) // "-" to invert orientation of axis y
);
line( img, center, center+orient, color, 1, CV_AA, draw_shift_bits ); line( img, center, center+orient, color, 1, CV_AA, draw_shift_bits );
} }
#if 0 #if 0