Python accessibility for the xfeatures2d functions (from `opencv_extra`)
I'm trying to use the some of the functions from the opencv_extra
repo, from python 3.
I'm building OpenCV from source:
durr@mainnas:~/b_opencv/opencv/build$ cmake -D CMAKE_BUILD_TYPE=RELEASE \
-D BUILD_PYTHON_SUPPORT=ON \
-D WITH_XINE=ON \
-D WITH_OPENGL=ON \
-D WITH_TBB=ON \
-D BUILD_EXAMPLES=ON \
-D BUILD_NEW_PYTHON_SUPPORT=ON \
-D PYTHON_EXECUTABLE=/usr/bin/python3 \
-D INSTALL_C_EXAMPLES=ON \
-D INSTALL_PYTHON_EXAMPLES=ON \
-D PYTHON_INCLUDE_DIR=/usr/include/python3.4 \
-D PYTHON_INCLUDE_DIR2=/usr/include/x86_64-linux-gnu/python3.4m \
-D PYTHON_LIBRARY=/usr/lib/x86_64-linux-gnu/libpython3.4m.so \
-D PYTHON_NUMPY_INCLUDE_DIRS=/usr/local/lib/python3.4/dist-packages/numpy/core/include/ \
-D PYTHON_PACKAGES_PATH=/usr/local/lib/python3.4/dist-packages/numpy/core/include/ \
-D BUILD_OPENCV_JAVA=NO \
-D OPENCV_EXTRA_MODULES_PATH=~/b_opencv/opencv_contrib/modules \
-D OPENCV_TEST_DATA_PATH=~/b_opencv/opencv_extra/testdata \
-D PYTHON3_EXECUTABLE=/usr/bin/python3 \
-D PYTHON3_NUMPY_INCLUDE_DIRS=/usr/local/lib/python3.4/dist-packages/numpy/core/include/ \
..
cmake
is correctly finding my python dir, and is claiming it's building xfeatures2d
:
-- General configuration for OpenCV 3.0.0-dev =====================================
-- Version control: 3.0.0-beta-41-g50c9367
--
-- Platform:
-- Host: Linux 3.13.0-40-generic x86_64
-- CMake: 2.8.12.2
-- CMake generator: Unix Makefiles
-- CMake build tool: /usr/bin/make
-- Configuration: RELEASE
--
-- C/C++:
-- Built as dynamic libs?: YES
-- C++ Compiler: /usr/bin/c++ (ver 4.8.2)
-- C++ flags (Release): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wno-narrowing -Wno-delete-non-virtual-dtor -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -msse3 -ffunction-sections -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG
-- C++ flags (Debug): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wno-narrowing -Wno-delete-non-virtual-dtor -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -msse3 -ffunction-sections -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG
-- C Compiler: /usr/bin/cc
-- C flags (Release): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wno-narrowing -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -msse3 -ffunction-sections -fvisibility=hidden -O3 -DNDEBUG -DNDEBUG
-- C flags (Debug): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wno-narrowing -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -msse3 -ffunction-sections -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG
-- Linker flags (Release):
-- Linker flags (Debug):
-- Precompiled headers: YES
--
-- OpenCV modules:
-- To be built: core imgproc imgcodecs videoio highgui xobjdetect adas video bgsegm bioinspired flann ml features2d calib3d ccalib face text datasets objdetect latentsvm line_descriptor optflow photo reg rgbd saliency shape xfeatures2d stitching superres surface_matching videostab ximgproc xphoto python2 python3 tracking ts
-- Disabled: world
-- Disabled by dependency: -
-- Unavailable: androidcamera cuda cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaoptflow cudastereo cudawarping cudev java viz cvv matlab
--
-- GUI:
-- QT: NO
-- GTK+ 2.x: YES (ver 2.24.23)
-- GThread : YES (ver 2.40.2)
-- GtkGlExt: NO
-- OpenGL support: NO
-- VTK support: NO
--
-- Media I/O:
-- ZLib: /usr/lib/x86_64-linux-gnu/libz.so (ver 1.2.8)
-- JPEG: /usr/lib/x86_64-linux-gnu/libjpeg.so (ver )
-- WEBP: /usr/lib/x86_64-linux-gnu/libwebp.so (ver encoder: 0x0202)
-- PNG: /usr/lib/x86_64-linux-gnu/libpng.so (ver 1.2.50)
-- TIFF ...