多边形逼近,用嘴贴切的多边形标识
void approxPolyDP(InputArray curve, OutputArray approxCurve, double epsilon, bool closed);void approxPolyDP(InputArray
多边形逼近,用嘴贴切的多边形标识
void approxPolyDP(InputArray curve, OutputArray approxCurve, double epsilon, bool closed);void approxPolyDP(InputArray