opencv2 highgui

highgui는 이미지를 불러오거나 GUI를 꾸미기 위한 기능을 지원한다.

크게는 윈도우 생성/조절/파괴 및 키 입력대기

CV_EXPORTS_W void namedWindow(const string& winname, int flags = WINDOW_AUTOSIZE); CV_EXPORTS_W void destroyWindow(const string& winname); CV_EXPORTS_W void destroyAllWindows(); CV_EXPORTS_W void resizeWindow(const string& winname, int width, int height); CV_EXPORTS_W void moveWindow(const string& winname, int x, int y); CV_EXPORTS_W int waitKey(int delay = 0);

이미지 불러오기/저장/출력

CV_EXPORTS_W void imshow(const string& winname, InputArray mat);   CV_EXPORTS_W Mat imread( const string& filename, int flags=1 ); CV_EXPORTS_W bool imwrite( const string& filename, InputArray img, const vector<int>& params=vector<int>()); CV_EXPORTS_W Mat imdecode( InputArray buf, int flags ); CV_EXPORTS Mat imdecode( InputArray buf, int flags, Mat* dst ); CV_EXPORTS_W bool imencode( const string& ext, InputArray img,                             CV_OUT vector<uchar>& buf,                             const vector<int>& params=vector<int>());

비디오 캡쳐(파일 및 웹캠 지원)

class CV_EXPORTS_W VideoCapture { public:     CV_WRAP VideoCapture();     CV_WRAP VideoCapture(const string& filename);     CV_WRAP VideoCapture(int device);     virtual ~VideoCapture();     CV_WRAP virtual bool open(const string& filename);     CV_WRAP virtual bool open(int device);     CV_WRAP virtual bool isOpened() const;     CV_WRAP virtual void release();     CV_WRAP virtual bool grab();     CV_WRAP virtual bool retrieve(CV_OUT Mat& image, int channel=0);     virtual VideoCapture& operator >> (CV_OUT Mat& image);     CV_WRAP virtual bool read(CV_OUT Mat& image);     CV_WRAP virtual bool set(int propId, double value);     CV_WRAP virtual double get(int propId); protected:     Ptr<CvCapture> cap; }; class CV_EXPORTS_W VideoWriter { public:     CV_WRAP VideoWriter();     CV_WRAP VideoWriter(const string& filename, int fourcc, double fps,                 Size frameSize, bool isColor=true);     virtual ~VideoWriter();     CV_WRAP virtual bool open(const string& filename, int fourcc, double fps,                       Size frameSize, bool isColor=true);     CV_WRAP virtual bool isOpened() const;     CV_WRAP virtual void release();     virtual VideoWriter& operator << (const Mat& image);     CV_WRAP virtual void write(const Mat& image); protected:     Ptr<CvVideoWriter> writer; };