cv::MSER(2, 10, 5000, 0.5, 0.3)(gray, regContours);
MSER的定义代码如下：
class CV_EXPORTS_W MSER : public FeatureDetector
{
public:
//! the full constructor
CV_WRAP explicit MSER( int _delta=5, int _min_area=60, int _max_area=14400,
double _max_variation=0.25, double _min_diversity=.2,
int _max_evolution=200, double _area_threshold=1.01,
double _min_margin=0.003, int _edge_blur_size=5 );
//! the operator that extracts the MSERs from the image or the specific part of it
CV_WRAP_AS(detect) void operator()( const Mat& image, CV_OUT vector<vector<Point> >& msers,
const Mat& mask=Mat() ) const;
AlgorithmInfo* info() const;
protected:
void detectImpl( const Mat& image, vector<KeyPoint>& keypoints, const Mat& mask=Mat() ) const;
int delta;
int minArea;
int maxArea;
double maxVariation;
double minDiversity;
int maxEvolution;
double areaThreshold;
double minMargin;
int edgeBlurSize;
};
我的问题是使用MSER之前不应先实例化一个对象再调用其成员函数么？如果让我来写，应该是下面这样来写：
MSER A(2, 10, 5000, 0.5, 0.3);
A(gray, regContours);
多用小脑和手，少用大脑、眼睛和嘴，会更快地学会编程！
）
