G-API Data Types

G-API data objects used to build G-API expressions. More...

Modules
	G-API Metadata Descriptors

Classes
class	cv::GArray< T >
	cv::GArray<T> template class represents a list of objects of class T in the graph. More...
class	cv::GFrame
	GFrame class represents an image or media frame in the graph. More...
class	cv::GMat
	GMat class represents image or tensor data in the graph. More...
class	cv::GMatP
class	cv::GOpaque< T >
	cv::GOpaque<T> template class represents an object of class T in the graph. More...
class	cv::GScalar
	GScalar class represents cv::Scalar data in the graph. More...

Detailed Description

G-API data objects used to build G-API expressions.

These objects do not own any particular data (except compile-time associated values like with cv::GScalar or cv::GArray<T>) and are used only to construct graphs.

Every graph in G-API starts and ends with data objects.

Once constructed and compiled, G-API operates with regular host-side data instead. Refer to the below table to find the mapping between G-API and regular data types when passing input and output data structures to G-API:

G-API data type	I/O data type
cv::GMat	cv::Mat, cv::UMat, cv::RMat
cv::GScalar	cv::Scalar
cv::GArray<T>	std::vector<T>
cv::GOpaque<T>	T
cv::GFrame	cv::MediaFrame