* hogsvm compatibility with python3

* add HAL for FAST

* add new interface

* persistence: replace arbitrary limit of cn to 4 by CV_CN_MAX

* python: added persistence test, remove temp files

* fixup! python: added persistence test, remove temp files

* fixup! python: added persistence test, remove temp files

* Bit-exact implementation of GaussianBlur smoothing

* Added universal intrinsics based implementation for bit-exact CV_8U GaussianBlur smoothing.

* Added parallel_for to evaluation of bit-exact GaussianBlur

* Added custom implementations for 3x3 and 5x5 bit-exact GaussianBlur

* Fix for QT image window rectangle

* Update window_QT.h

* Update window_QT.cpp

* trailing whitespace

* highgui: fix QT getWindowImageRect()

* cuda::cvtColor bug fix

Fixed bug in conversion formula between RGB space and LUV space.
Testing with opencv_test_cudaimgproc.exe, this commit reduces the number
of failed tests from 191 to 95. (96 more tests pass)

* Rename variables

cut one ocl kernel if normVariance is disabled,
also use native_powr for performance reason.
Signed-off-by: Li Peng <peng.li@intel.com>

Signed-off-by: Li Peng <peng.li@intel.com>

Documentation generation refactoring (#10621)

* Documentation build updates:

- disable documentation by default, do not add to ALL target
- combine Doxygen and Javadoc
- optimize Doxygen html

* javadoc: fix path in build directory

* cmake: fix "Documentation" status line

Update to add window position and size retrieval to HighGUI (#10412)

* Update highgui.hpp

Add read only property retrieval for enhanced rendering capabilities and more sophisticated research tools

* Update window.cpp

* Update window_w32.cpp

* Update window_QT.cpp

* Update window_QT.h

* Update window_QT.h

* Update window_gtk.cpp

* Update precomp.hpp

* Update highgui_c.h

* Update highgui_c.h

* Update window_w32.cpp

* Update precomp.hpp

* Update window_QT.cpp

* Update window_QT.h

* Update window_gtk.cpp

* Update window_gtk.cpp

* Update window_w32.cpp

* Update window_QT.cpp

* Update window_carbon.cpp

* Update window_cocoa.mm

* Update precomp.hpp

* Update window_cocoa.mm

* Update window_w32.cpp

* Update window_gtk.cpp

* Update window_QT.cpp

* Update window_gtk.cpp

* Update window_QT.cpp

* Update window_cocoa.mm

* Update window_carbon.cpp

* Update window_w32.cpp

* Update window_cocoa.mm

* Update window_gtk.cpp

* Update window_cocoa.mm

* Update window_gtk.cpp

* Update window_cocoa.mm

* Update window_cocoa.mm

* Update window.cpp

* Update test_gui.cpp

* Update test_gui.cpp

* Update test_gui.cpp

* Update highgui_c.h

* Update highgui.hpp

* Update window.cpp

* Update highgui_c.h

* Update test_gui.cpp

* Update highgui.hpp

* Update window.cpp

* Update window.cpp

* Update window.cpp

* Update window.cpp

* Update window.cpp

Re-apply protobuf fix for JavaScript builds

original commit: f5035150
JavaScript bindings for dnn module

and add parametric unit test for crop layer.