opencv rectangle
opencv rectangle
void rectangle( InputOutputArray _img, Point pt1, Point pt2, const Scalar& color, int thickness, int lineType, int shift ) { CV_INSTRUMENT_REGION(); Mat img = _img.getMat(); if( lineType == CV_AA && img.depth() != CV_8U ) lineType = 8; CV_Assert( thickness <= MAX_THICKNESS ); CV_Assert( 0 <= shift && shift <= XY_SHIFT ); double buf[4]; scalarToRawData(color, buf, img.type(), 0); Point2l pt[4]; pt[0] = pt1; pt[1].x = pt2.x; pt[1].y = pt1.y; pt[2] = pt2; pt[3].x = pt1.x; pt[3].y = pt2.y; if( thickness >= 0 ) PolyLine( img, pt, 4, true, buf, thickness, lineType, shift ); else FillConvexPoly( img, pt, 4, buf, lineType, shift ); }
void rectangle( InputOutputArray img, Rect rec, const Scalar& color, int thickness, int lineType, int shift ) { CV_INSTRUMENT_REGION(); if( !rec.empty() ) rectangle( img, rec.tl(), rec.br() - Point(1<<shift,1<<shift), color, thickness, lineType, shift ); }
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