* Introduce GAPI_TRANSFORM initial interface
Comes along with simple tests and kernel package changes
* Fix documentation and adjust combine() function
* Fix stuff after rebasing on master
* Remove redundant functionality
* Refactoring according to review feedback provided
* Fixes according to review feedback
* Reconsider transformations return and fix a warning
* Fixes from code review
* Add a new simple test
* Cleanup, added tests on GScalar, GMatP, GArray
G-API: Add parameters alpha and beta in tests on ConvertTo kernel (#14684)
* Add parameters alpha and beta in tests on ConvertTo kernel
* Change tolerance function
* Reduce number of test cases
G-API aux kernels (#14599)
* Removed gcpuimgproc.hpp and gcpucore.hpp
* Changed GModel::orderedInputs and orderedOutputs to get ConstGraph&
* Added auxiliaryKernels() method of GBackend::Priv
G-API: Kernel package design (#13851)
* Remove cv::unite_policy from API
* Add check that all id in kernel package are unique
* Refactor checker id procedure
* Remove cv::gapi::GLookupOrder from API
* Implement cv::gapi::use_only
* Fix samples
* Fix docs
* Fix comments to review
* Remove unite_policy
* Fix GKernelPackage::backends()
* Fix comments to review
* Fix all_unique
* Fix comments to review
* Fix comments to review
* Remove out of date tests
G-API external backend development (#13943)
* Moved HostCtor and ConstVal from gapi_priv.hpp to objref.hpp
* Added gmodel_priv.hpp, added export of symbols from gmodel.hpp
* Added export of binInArg and bindOutArg
* Renamed gapi_priv.*pp -> gorigin.*pp
* Added a fixme on collecting exports inside one class
Allow nodes produced after some operation to be
"unused": not being an output and not being used
as inputs to other operations
Add fluid test to cover this case
* Add Sobel kernel which returns both dx and dy
* Splice dx and dy and extend add_border function
Also change some tests parameters
* Add borderValue parameter in test
* Introduces fluid kernel for sobelxy
Adds tests (basic and performance) on new backend
* Introduces BufHelper struct for some arithmetic
GAPI: Add normalize kernel in G-API (#13721)
* Add normalize kernel in G-API
In addition add several tests on new kernel
* Fix indentations and normalize test structure
* Move normalize kernel from imgproc to core
Set default parameter ddepth to -1
* Fix alignment
* Return vector of MetaArg instead of MatDesc and fix test with ADL check
* Fix construction of vector
* Change names and tests according to review
Also add GAPI_EXPORTS prefix for two ostream operators
* Add version of descr_of function taking vector of Mat
* Overload descr_of function for cv::Mat
* Add template function instead of copypasting and change tests a little