Orest Chura 986ad4ff06 Merge pull request #18857 from OrestChura:oc/kmeans ... [G-API]: kmeans() Standard Kernel Implementation * cv::gapi::kmeans kernel implementation - 4 overloads: - standard GMat - for any dimensionality - GMat without bestLabels initialization - GArray<Point2f> - for 2D - GArray<Point3f> - for 3D - Accuracy tests: - for every input - 2 tests 1) without initializing. In this case, no comparison with cv::kmeans is done as kmeans uses random auto-initialization 2) with initialization - in both cases, only 1 attempt is done as after first attempt kmeans initializes bestLabels randomly * Addressing comments - bestLabels is returned to its original place among parameters - checkVector and isPointsVector functions are merged into one, shared between core.hpp & imgproc.hpp by placing it into gmat.hpp (and implementation - to gmat.cpp) - typos corrected * addressing comments - unified names in tests - const added - typos * Addressing comments - fixed the doc note - ddepth -> expectedDepth, `< 0 ` -> `== -1` * Fix unsupported cases of input Mat - supported: multiple channels, reversed width - added test cases for those - added notes in docs - refactored checkVector to return dimentionality along with quantity * Addressing comments - makes chackVector smaller and (maybe) clearer * Addressing comments * Addressing comments - cv::checkVector -> cv::gapi::detail * Addressing comments - Changed checkVector: returns bool, quantity & dimensionality as references * Addressing comments - Polishing checkVector - FIXME added * Addressing discussion - checkVector: added overload, separate two different functionalities - depth assert - out of the function * Addressing comments - quantity -> amount, dimensionality -> dim - Fix typos * Addressing comments - fix docs - use 2 variable's definitions instead of one (for all non-trivial variables)		2020-11-30 13:18:43 +00:00
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gapi	Merge pull request #18857 from OrestChura:oc/kmeans	2020-11-30 13:18:43 +00:00
gapi.hpp	G-API: Introduce streaming::desync and infer(ROI)	2020-10-29 20:19:15 +03:00