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ofxCv

ofxCv/変換

Top / ofxCv / 変換

toCv

• cv::Mat toCv(ofImage)
• cv::Mat toCv(ofImage).clone()

  cv::Mat	toCv(cv::Mat& mat)
  cv::Mat	toCv(ofMesh& mesh);
  cv::Point2f?	toCv(ofVec2f? vec);
  cv::Point3f?	toCv(ofVec3f? vec);
  cv::Rect	toCv(ofRectangle? rect);
  std::vector<cv::Point2f?>	toCv(const ofPolyline& polyline);
  std::vector<cv::Point2f?>	toCv(const std::vector<ofVec2f?>& points);
  std::vector<cv::Point3f?>	toCv(const std::vector<ofVec3f?>& points);
  cv::Scalar	toCv(ofColor color);

toOf

• 戻り値	引数
  ofVec2f?	toOf(Point2f? point)
  ofVec3f?	toOf(Point3f? point)
  ofRectangle?	toOf(cv::Rect rect)
  ofPolyline	toOf(cv::RotatedRect rect)
  void	toOf(cv::Mat, ofPixels_?<T>)
  void	toOf(cv::Mat, ofImage_<T>)

ofxCv::copy?

• works with any type supported by toCv():
• copy(src, dst);

ofxCv::imitate

• primarily used internally by ofxCv.
• imitate(mirror, original)

• It works with cv::Mat, ofImage, ofPixels, ofVideoGrabber, and anything else that extends ofBaseHasPixels?.
• It will only reallocate memory if necessary. This means it can be used liberally.

ofxCv::drawMat

• not the most optimal way of drawing images to the screen, because it creates a texture every time it draws.

ofImageをcv::Matとして扱う

• Either use Mat mat = toCv(img); to treat the ofImage as a Mat, modify the mat, then img.update() to upload the modified pixels to the GPU.
  • toCvしてofImage::updateする
• もしくはtoOf(mat, img)

参考

• https://github.com/kylemcdonald/ofxCv