Opencv static library could not be linked in eclipse (-ldl is added!) - c++

I would like to link opencv statically in my c++ program so user does not have to download opencv themselves.
I have tried everything on internet to try to use opencv static library in my c++ program but it is not working.
I have compiled the opencv static library with -DBUILD_SHARED_LIBS=OFF to generate opencv lib files in /usr/local/lib. All of the files has .a extension. I moved these files to a folder in my program and linked it with eclipse with ("${workspace_loc:/${ProjName}/opencv lib}")
I have included -ljpeg -lpng -ltiff -lzlib -lpthread -lrt -ldl -lz -lm
I have put -static flag
I tried to link /usr/local/include/opencv and /usr/local/bin instead
The error message shown a bunch of code like
...
sum.cpp:(.text._ZN2cv3sumERKNS_11_InputArrayE+0xb19): undefined reference to `ippicviSum_16s_C4R'
...
and
/home/vivian/cuda-workspace/AutoVideoAnalyze_v4/opencv lib/libdl.a(dlopen.o): In function dlopen':
(.text+0x5): undefined reference to__dlopen'
/home/vivian/cuda-workspace/AutoVideoAnalyze_v4/opencv lib/libdl.a(dlclose.o): In function dlclose':
(.text+0x1): undefined reference to__dlclose'
/home/vivian/cuda-workspace/AutoVideoAnalyze_v4/opencv lib/libdl.a(dlsym.o): In function dlsym':
(.text+0x5): undefined reference to__dlsym'
collect2: error: ld returned 1 exit status
make: *** [AutoVideoAnalyze_v4] Error 1
I have tried many combination and different ways on google but nothing works. Have anyone actually linked opencv statically on their c++ program? Can you share your work please?

Finally linked opencv statically i eclipse! I used Opencv Cuda, IPP, ffmpeg and many other libraries so there are more libraries to include!
gcc c++ linker: Libraries(-l):
opencv_cudabgsegm, opencv_cudaobjdetect ,opencv_cudastereo, opencv_stitching, opencv_cudafeatures2d, opencv_superres, opencv_cudacodec, opencv_videostab, opencv_cudaoptflow, opencv_cudalegacy, opencv_cudawarping, opencv_aruco, opencv_bgsegm, opencv_bioinspired, opencv_ccalib, opencv_cvv, opencv_dnn_objdetect, opencv_dpm, opencv_face, opencv_photo, opencv_cudaimgproc, opencv_cudafilters, opencv_freetype, opencv_fuzzy, opencv_hdf, opencv_hfs, opencv_img_hash, opencv_line_descriptor, opencv_optflow, opencv_reg, opencv_rgbd, opencv_saliency, opencv_stereo, opencv_structured_light, opencv_phase_unwrapping, opencv_surface_matching, opencv_tracking, opencv_datasets, opencv_text, opencv_dnn, opencv_plot, opencv_xfeatures2d, opencv_shape, opencv_video, opencv_ml, opencv_cudaarithm, opencv_ximgproc, opencv_calib3d, opencv_features2d, opencv_highgui, opencv_videoio, opencv_flann, opencv_xobjdetect, opencv_imgcodecs, opencv_objdetect, opencv_xphoto, opencv_imgproc, opencv_core, opencv_cudev, libprotobuf, GLU, GL, gstpbutils-1.0, gstriff-1.0, gstapp-1.0, gstvideo-1.0, gstbase-1.0, gstreamer-1.0, gobject-2.0, glib-2.0, avcodec, avformat, swscale, avutil, avfilter, swresample, avresample, avdevice, postproc, m, z, x264, lzma, rt, dc1394, tbb, gphoto2_port, gphoto2, xine, jpeg, webp, png, tiff, jasper, Imath, hdf5, lept, sz, IlmImf, cudart, nppc, nppial, nppicc, nppicom, nppidei, nppif, nppig, nppim, nppist, nppisu, nppitc, npps, cublas, cufft, ippiw, ippicv, ittnotify, dl, pthread
Library search path (-L):
/usr/include, /usr/lib/x86_64-linux-gnu, /usr/lib/x86_64-linux-gnu/hdf5/serial/, /usr/local/share/OpenCV/3rdparty/lib, /usr/local/cuda-9.2/lib64, /usr/local/lib
If you want to know what library do you need to include, you can look at the General configuration that looks like the script below (*appear when you are building opencv) and include every library in the script into the program that you want to link opencv statically.
General configuration for OpenCV 3.4.2 =====================================
-- Version control: 3.4.2
--
-- Extra modules:
-- Location (extra): /home/vivian/Downloads/opencv_contrib/modules
-- Version control (extra): 3.4.2
--
-- Platform:
-- Timestamp: 2019-01-17T01:23:08Z
-- Host: Linux 4.15.0-43-generic x86_64
-- CMake: 3.10.2
-- CMake generator: Unix Makefiles
-- CMake build tool: /usr/bin/make
-- Configuration: RELEASE
--
-- CPU/HW features:
-- Baseline: SSE SSE2 SSE3
-- requested: SSE3
-- Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX
-- requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
-- SSE4_1 (3 files): + SSSE3 SSE4_1
-- SSE4_2 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2
-- FP16 (2 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
-- AVX (5 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
-- AVX2 (9 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
-- AVX512_SKX (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_SKX
--
-- C/C++:
-- Built as dynamic libs?: NO
-- C++11: YES
-- C++ Compiler: /usr/bin/c++ (ver 7.3.0)
-- 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 -Wuninitialized -Winit-self -Wsuggest-override -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffast-math -ffunction-sections -fdata-sections -msse -msse2 -msse3 -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 -Wuninitialized -Winit-self -Wsuggest-override -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffast-math -ffunction-sections -fdata-sections -msse -msse2 -msse3 -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 -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment -Wimplicit-fallthrough=3 -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffast-math -ffunction-sections -fdata-sections -msse -msse2 -msse3 -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 -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment -Wimplicit-fallthrough=3 -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffast-math -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG
-- Linker flags (Release):
-- Linker flags (Debug):
-- ccache: NO
-- Precompiled headers: NO
-- Extra dependencies: /usr/lib/x86_64-linux-gnu/libtbb.so /usr/lib/x86_64-linux-gnu/libcuda.so /usr/lib/x86_64-linux-gnu/libnvcuvid.so Qt5::Test Qt5::Concurrent Qt5::OpenGL /usr/lib/x86_64-linux-gnu/libwebp.so /usr/lib/x86_64-linux-gnu/libpng.so /usr/lib/x86_64-linux-gnu/libtiff.so /usr/lib/x86_64-linux-gnu/libjasper.so /usr/lib/x86_64-linux-gnu/libjpeg.so /usr/lib/x86_64-linux-gnu/libImath.so /usr/lib/x86_64-linux-gnu/libIlmImf.so /usr/lib/x86_64-linux-gnu/libIex.so /usr/lib/x86_64-linux-gnu/libHalf.so /usr/lib/x86_64-linux-gnu/libIlmThread.so gstbase-1.0 gstreamer-1.0 gobject-2.0 glib-2.0 gstvideo-1.0 gstapp-1.0 gstriff-1.0 gstpbutils-1.0 dc1394 xine avformat z avcodec lzma swresample swscale avutil avresample gphoto2 gphoto2_port Qt5::Core Qt5::Gui Qt5::Widgets freetype harfbuzz /usr/lib/x86_64-linux-gnu/hdf5/serial/libhdf5.so /usr/lib/x86_64-linux-gnu/libpthread.so /usr/lib/x86_64-linux-gnu/libsz.so /usr/lib/x86_64-linux-gnu/libz.so /usr/lib/x86_64-linux-gnu/libdl.so /usr/lib/x86_64-linux-gnu/libm.so tesseract lept dl m pthread rt /usr/lib/x86_64-linux-gnu/libGL.so /usr/lib/x86_64-linux-gnu/libGLU.so cudart nppc nppial nppicc nppicom nppidei nppif nppig nppim nppist nppisu nppitc npps cublas cufft -L/usr/local/cuda-9.2/lib64
-- 3rdparty dependencies: ittnotify libprotobuf ippiw ippicv
--
-- OpenCV modules:
-- To be built: aruco bgsegm bioinspired calib3d ccalib core cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv datasets dnn dnn_objdetect dpm face features2d flann freetype fuzzy hdf hfs highgui img_hash imgcodecs imgproc java java_bindings_generator line_descriptor ml objdetect optflow phase_unwrapping photo plot python2 python3 python_bindings_generator reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking ts video videoio videostab xfeatures2d ximgproc xobjdetect xphoto
-- Disabled: js world
-- Disabled by dependency: -
-- Unavailable: cnn_3dobj matlab ovis sfm viz
-- Applications: tests perf_tests apps
-- Documentation: NO
-- Non-free algorithms: NO
--
-- GUI:
-- QT: YES (ver 5.9.5)
-- QT OpenGL support: YES (Qt5::OpenGL 5.9.5)
-- GTK+: NO
-- OpenGL support: YES (/usr/lib/x86_64-linux-gnu/libGL.so /usr/lib/x86_64-linux-gnu/libGLU.so)
-- VTK support: NO
--
-- Media I/O:
-- ZLib: /usr/lib/x86_64-linux-gnu/libz.so (ver 1.2.11)
-- JPEG: /usr/lib/x86_64-linux-gnu/libjpeg.so (ver 80)
-- WEBP: /usr/lib/x86_64-linux-gnu/libwebp.so (ver encoder: 0x020e)
-- PNG: /usr/lib/x86_64-linux-gnu/libpng.so (ver 1.6.34)
-- TIFF: /usr/lib/x86_64-linux-gnu/libtiff.so (ver 42 / 4.0.9)
-- JPEG 2000: /usr/lib/x86_64-linux-gnu/libjasper.so (ver 1.900.1)
-- OpenEXR: /usr/lib/x86_64-linux-gnu/libImath.so /usr/lib/x86_64-linux-gnu/libIlmImf.so /usr/lib/x86_64-linux-gnu/libIex.so /usr/lib/x86_64-linux-gnu/libHalf.so /usr/lib/x86_64-linux-gnu/libIlmThread.so (ver 2.2.0)
-- HDR: YES
-- SUNRASTER: YES
-- PXM: YES
--
-- Video I/O:
-- DC1394: YES (ver 2.2.5)
-- FFMPEG: YES
-- avcodec: YES (ver 58.25.100)
-- avformat: YES (ver 58.17.103)
-- avutil: YES (ver 56.19.100)
-- swscale: YES (ver 5.2.100)
-- avresample: YES (ver 3.7.0)
-- GStreamer:
-- base: YES (ver 1.14.1)
-- video: YES (ver 1.14.1)
-- app: YES (ver 1.14.1)
-- riff: YES (ver 1.14.1)
-- pbutils: YES (ver 1.14.1)
-- libv4l/libv4l2: NO
-- v4l/v4l2: linux/videodev2.h
-- Xine: YES (ver 1.2.8)
-- gPhoto2: YES
--
-- Parallel framework: TBB (ver 2017.0 interface 9107)
--
-- Trace: YES (with Intel ITT)
--
-- Other third-party libraries:
-- Intel IPP: 2017.0.3 [2017.0.3]
-- at: /home/vivian/Downloads/opencv/build/3rdparty/ippicv/ippicv_lnx
-- Intel IPP IW: sources (2017.0.3)
-- at: /home/vivian/Downloads/opencv/build/3rdparty/ippicv/ippiw_lnx
-- Lapack: NO
-- Eigen: YES (ver 3.3.4)
-- Custom HAL: NO
-- Protobuf: build (3.5.1)
--
-- NVIDIA CUDA: YES (ver 9.2, CUFFT CUBLAS NVCUVID FAST_MATH)
-- NVIDIA GPU arch: 61
-- NVIDIA PTX archs:
--
-- OpenCL: YES (no extra features)
-- Include path: /home/vivian/Downloads/opencv/3rdparty/include/opencl/1.2
-- Link libraries: Dynamic load
--
-- Python 2:
-- Interpreter: /usr/bin/python2.7 (ver 2.7.15)
-- Libraries: /usr/lib/x86_64-linux-gnu/libpython2.7.so (ver 2.7.15rc1)
-- numpy: /home/vivian/.local/lib/python2.7/site-packages/numpy/core/include (ver 1.15.2)
-- packages path: lib/python2.7/dist-packages
--
-- Python 3:
-- Interpreter: /usr/bin/python3 (ver 3.6.7)
-- Libraries: /usr/lib/x86_64-linux-gnu/libpython3.6m.so (ver 3.6.7)
-- numpy: /home/vivian/.local/lib/python3.6/site-packages/numpy/core/include (ver 1.15.4)
-- packages path: lib/python3.6/dist-packages
--
-- Python (for build): /usr/bin/python2.7
--
-- Java:
-- ant: /usr/bin/ant (ver 1.10.3)
-- JNI: /usr/lib/jvm/default-java/include /usr/lib/jvm/default-java/include/linux /usr/lib/jvm/default-java/include
-- Java wrappers: YES
-- Java tests: YES
--
-- Matlab: NO
--
-- Install to: /usr/local

Related

OpenCV 2.4.11 Compilation For ROS ORB_SLAM2 Fails

I am trying to get orb_slam2_ros to compile and it needed an OpenCV version higher than 2.3. I have 4.2.0 but it doesn't work but according to ROS, it has been tested to work on 2.4.11. Here is what I did:
Download the source zip file.
Extract it.
Go into the directory and create a build folder.
Go into the build folder and run cmake ...
There is gives me this:
CMake Error at cmake/OpenCVDetectCXXCompiler.cmake:85 (list):
list GET given empty list
Call Stack (most recent call first):
CMakeLists.txt:84 (include)
CMake Error at cmake/OpenCVDetectCXXCompiler.cmake:86 (list):
list GET given empty list
Call Stack (most recent call first):
CMakeLists.txt:84 (include)
CMake Error at cmake/OpenCVDetectCXXCompiler.cmake:89 (math):
math cannot parse the expression: "*100 + ": syntax error, unexpected
exp_TIMES (1).
Call Stack (most recent call first):
CMakeLists.txt:84 (include)
-- Detected version of GNU GCC: (ERROR)
-- Found OpenEXR: /usr/lib/x86_64-linux-gnu/libIlmImf.so
-- checking for module 'gstreamer-video-1.0'
-- package 'gstreamer-video-1.0' not found
-- checking for module 'gstreamer-app-1.0'
-- package 'gstreamer-app-1.0' not found
-- checking for module 'gstreamer-riff-1.0'
-- package 'gstreamer-riff-1.0' not found
-- checking for module 'gstreamer-pbutils-1.0'
-- package 'gstreamer-pbutils-1.0' not found
-- checking for module 'gstreamer-base-0.10'
-- package 'gstreamer-base-0.10' not found
-- checking for module 'gstreamer-video-0.10'
-- package 'gstreamer-video-0.10' not found
-- checking for module 'gstreamer-app-0.10'
-- package 'gstreamer-app-0.10' not found
-- checking for module 'gstreamer-riff-0.10'
-- package 'gstreamer-riff-0.10' not found
-- checking for module 'gstreamer-pbutils-0.10'
-- package 'gstreamer-pbutils-0.10' not found
-- Looking for linux/videodev.h
-- Looking for linux/videodev.h - not found
-- Looking for linux/videodev2.h
-- Looking for linux/videodev2.h - found
-- Looking for sys/videoio.h
-- Looking for sys/videoio.h - not found
-- Looking for libavformat/avformat.h
-- Looking for libavformat/avformat.h - found
-- Looking for ffmpeg/avformat.h
-- Looking for ffmpeg/avformat.h - not found
--
-- General configuration for OpenCV 2.4.11 =====================================
-- Version control: unknown
--
-- Platform:
-- Host: Linux 5.8.0-41-generic x86_64
-- CMake: 3.16.3
-- 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 9.3.0)
-- C++ flags (Release): -fsigned-char -W -Wall -Werror=return-type -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 -O3 -DNDEBUG -DNDEBUG
-- C++ flags (Debug): -fsigned-char -W -Wall -Werror=return-type -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 -g -O0 -DDEBUG -D_DEBUG
-- C Compiler: /usr/bin/cc
-- C flags (Release): -fsigned-char -W -Wall -Werror=return-type -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 -O3 -DNDEBUG -DNDEBUG
-- C flags (Debug): -fsigned-char -W -Wall -Werror=return-type -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 -g -O0 -DDEBUG -D_DEBUG
-- Linker flags (Release):
-- Linker flags (Debug):
-- Precompiled headers: YES
--
-- OpenCV modules:
-- To be built: core flann imgproc highgui features2d calib3d ml video legacy objdetect photo gpu ocl nonfree contrib stitching superres ts videostab
-- Disabled: world
-- Disabled by dependency: -
-- Unavailable: androidcamera dynamicuda java python viz
--
-- GUI:
-- QT: NO
-- GTK+ 2.x: YES (ver 2.24.32)
-- GThread : YES (ver 2.64.6)
-- GtkGlExt: NO
-- OpenGL support: NO
-- VTK support: NO
--
-- Media I/O:
-- ZLib: /usr/lib/x86_64-linux-gnu/libz.so (ver 1.2.11)
-- JPEG: /usr/lib/x86_64-linux-gnu/libjpeg.so (ver )
-- PNG: /usr/lib/x86_64-linux-gnu/libpng.so (ver 1.6.37)
-- TIFF: /usr/lib/x86_64-linux-gnu/libtiff.so (ver 42 - 4.1.0)
-- JPEG 2000: /usr/lib/x86_64-linux-gnu/libjasper.so (ver 1.900.1)
-- OpenEXR: /usr/lib/x86_64-linux-gnu/libImath.so /usr/lib/x86_64-linux-gnu/libIlmImf.so /usr/lib/x86_64-linux-gnu/libIex.so /usr/lib/x86_64-linux-gnu/libHalf.so /usr/lib/x86_64-linux-gnu/libIlmThread.so (ver 2.3.0)
--
-- Video I/O:
-- DC1394 1.x: NO
-- DC1394 2.x: YES (ver 2.2.5)
-- FFMPEG: YES
-- codec: YES (ver 58.54.100)
-- format: YES (ver 58.29.100)
-- util: YES (ver 56.31.100)
-- swscale: YES (ver 5.5.100)
-- gentoo-style: YES
-- GStreamer: NO
-- OpenNI: NO
-- OpenNI PrimeSensor Modules: NO
-- PvAPI: NO
-- GigEVisionSDK: NO
-- UniCap: NO
-- UniCap ucil: NO
-- V4L/V4L2: Using libv4l1 (ver 1.18.0) / libv4l2 (ver 1.18.0)
-- XIMEA: NO
-- Xine: NO
--
-- Other third-party libraries:
-- Use IPP: NO
-- Use Eigen: YES (ver 3.3.7)
-- Use TBB: NO
-- Use OpenMP: NO
-- Use GCD NO
-- Use Concurrency NO
-- Use C=: NO
-- Use Cuda: NO
-- Use OpenCL: YES
--
-- OpenCL:
-- Version: dynamic
-- Include path: /home/dragonros/Downloads/SLAM_DEPS/opencv-2.4.11/3rdparty/include/opencl/1.2
-- Use AMD FFT: NO
-- Use AMD BLAS: NO
--
-- Python:
-- Interpreter: /usr/bin/python2 (ver )
--
-- Java:
-- ant: NO
-- JNI: /usr/lib/jvm/java-8-openjdk-amd64/include /usr/lib/jvm/java-8-openjdk-amd64/include/linux /usr/lib/jvm/java-8-openjdk-amd64/include
-- Java tests: NO
--
-- Documentation:
-- Build Documentation: NO
-- Sphinx: NO
-- PdfLaTeX compiler: NO
-- Doxygen: NO
--
-- Tests and samples:
-- Tests: YES
-- Performance tests: YES
-- C/C++ Examples: NO
--
-- Install path: /usr/local
--
-- cvconfig.h is in: /home/dragonros/Downloads/SLAM_DEPS/build
-- -----------------------------------------------------------------
--
-- Configuring incomplete, errors occurred!
See also "/home/dragonros/Downloads/SLAM_DEPS/build/CMakeFiles/CMakeOutput.log".
See also "/home/dragonros/Downloads/SLAM_DEPS/build/CMakeFiles/CMakeError.log".
Am I compiling it wrong? If not, how can I resolve this error?
You need to change opencv2.4.13/cmake/OpenCVDetectCXXCompiler.cmake (not sure which line) dumpversion to dumpfullversion
Explanation is that
In gcc with higher version, dumpversion function can't get true full
version number of compiler so that cmake progress will fail
Recommendation: On github, there plenty of refactored versions for both 4.2.0 and others. I recommend to upgrade to newer OpenCV versions for orb_slam_ros. Cmake lists and source files should be changed respectively.

Failed to compile OpenCV project with Clion IDE

I configured OpenCV 3.4.11 according to this post.
I am using MingGW as my compiler.
Here is what CMake GUI told me:
Detected processor: AMD64
sizeof(void) = 4 on 64 bit processor. Assume 32-bit compilation mode
libjpeg-turbo: VERSION = 2.0.5, BUILD = opencv-3.4.11-libjpeg-turbo
Could not find OpenBLAS include. Turning OpenBLAS_FOUND off
Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off
Could NOT find BLAS (missing: BLAS_LIBRARIES)
LAPACK requires BLAS
A library with LAPACK API not found. Please specify library location.
Found apache ant: C:/apache-ant-1.10.8/bin/ant.bat (1.8.0)
Could NOT find JNI (missing: JAVA_AWT_LIBRARY JAVA_JVM_LIBRARY JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 JAVA_AWT_INCLUDE_PATH)
VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file
OpenCV Python: during development append to PYTHONPATH: D:/mingw-build-3.4.11/python_loader
Caffe: NO
Protobuf: NO
Glog: NO
freetype2: NO
harfbuzz: NO
Module opencv_ovis disabled because OGRE3D was not found
No preference for use of exported gflags CMake configuration set, and no hints for include/library directories provided. Defaulting to preferring an installed/exported gflags CMake configuration if available.
Failed to find installed gflags CMake configuration, searching for gflags build directories exported with CMake.
Failed to find gflags - Failed to find an installed/exported CMake configuration for gflags, will perform search for installed gflags components.
Failed to find gflags - Could not find gflags include directory, set GFLAGS_INCLUDE_DIR to directory containing gflags/gflags.h
Failed to find glog - Could not find glog include directory, set GLOG_INCLUDE_DIR to directory containing glog/logging.h
Module opencv_sfm disabled because the following dependencies are not found: Eigen Glog/Gflags
Allocator metrics storage type: 'int'
Excluding from source files list: modules/imgproc/src/imgwarp.avx2.cpp
Excluding from source files list: modules/imgproc/src/resize.avx2.cpp
Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.avx2.cpp
Excluding from source files list: <BUILD>/modules/dnn/layers/layers_common.avx512_skx.cpp
Excluding from source files list: modules/features2d/src/fast.avx2.cpp
General configuration for OpenCV 3.4.11 =====================================
Version control: unknown
Extra modules:
Location (extra): D:/opencv_contrib-3.4.11/modules
Version control (extra): unknown
Platform:
Timestamp: 2020-08-15T06:52:46Z
Host: Windows 10.0.18363 AMD64
CMake: 3.18.1
CMake generator: MinGW Makefiles
CMake build tool: C:/MinGW/bin/mingw32-make.exe
Configuration: Release
CPU/HW features:
Baseline: SSE SSE2
requested: SSE2
Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX
requested: SSE4_1 SSE4_2 AVX FP16
SSE4_1 (14 files): + SSE3 SSSE3 SSE4_1
SSE4_2 (1 files): + SSE3 SSSE3 SSE4_1 POPCNT SSE4_2
FP16 (0 files): + SSE3 SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
AVX (5 files): + SSE3 SSSE3 SSE4_1 POPCNT SSE4_2 AVX
C/C++:
Built as dynamic libs?: NO
C++11: YES
C++ Compiler: C:/Strawberry/c/bin/g++.exe (ver 4.9.2)
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 -Wuninitialized -Winit-self -Wno-delete-non-virtual-dtor -Wno-comment -Wno-missing-field-initializers -fdiagnostics-show-option -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -mfpmath=sse -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 -Wuninitialized -Winit-self -Wno-delete-non-virtual-dtor -Wno-comment -Wno-missing-field-initializers -fdiagnostics-show-option -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -mfpmath=sse -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG
C Compiler: C:/Strawberry/c/bin/gcc.exe
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 -Wuninitialized -Winit-self -Wno-comment -Wno-missing-field-initializers -fdiagnostics-show-option -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -mfpmath=sse -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 -Wuninitialized -Winit-self -Wno-comment -Wno-missing-field-initializers -fdiagnostics-show-option -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -mfpmath=sse -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG
Linker flags (Release): -Wl,--gc-sections
Linker flags (Debug): -Wl,--gc-sections
ccache: NO
Precompiled headers: NO
Extra dependencies: comctl32 gdi32 ole32 setupapi ws2_32 winmm
3rdparty dependencies: libprotobuf zlib libjpeg-turbo libwebp libpng libtiff libjasper IlmImf quirc
OpenCV modules:
To be built: aruco bgsegm bioinspired calib3d ccalib core datasets dnn dnn_objdetect dpm face features2d flann fuzzy hfs highgui img_hash imgcodecs imgproc line_descriptor ml objdetect optflow phase_unwrapping photo plot reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking ts video videoio videostab xfeatures2d ximgproc xobjdetect xphoto
Disabled: python_bindings_generator python_tests world
Disabled by dependency: -
Unavailable: cnn_3dobj cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv freetype hdf java js matlab ovis python2 python3 sfm viz
Applications: apps
Documentation: NO
Non-free algorithms: NO
Windows RT support: NO
GUI:
Win32 UI: YES
VTK support: NO
Media I/O:
ZLib: build (ver 1.2.11)
JPEG: build-libjpeg-turbo (ver 2.0.5-62)
WEBP: build (ver encoder: 0x020f)
PNG: build (ver 1.6.37)
TIFF: build (ver 42 - 4.0.10)
JPEG 2000: build (ver 1.900.1)
OpenEXR: build (ver 2.3.0)
HDR: YES
SUNRASTER: YES
PXM: YES
Video I/O:
DC1394: NO
FFMPEG: YES (prebuilt binaries)
avcodec: YES (ver 57.107.100)
avformat: YES (ver 57.83.100)
avutil: YES (ver 55.78.100)
swscale: YES (ver 4.8.100)
avresample: YES (ver 3.7.0)
GStreamer: NO
DirectShow: YES
Parallel framework: none
Trace: YES (built-in)
Other third-party libraries:
Lapack: NO
Eigen: NO
Custom HAL: NO
Protobuf: build (3.5.1)
OpenCL: YES (no extra features)
Include path: D:/opencv-3.4.11/sources/3rdparty/include/opencl/1.2
Link libraries: Dynamic load
Python (for build): C:/Users/Administrator/AppData/Local/Programs/Python/Python38-32/python.exe
Java:
ant: C:/apache-ant-1.10.8/bin/ant.bat (ver 1.8.0)
JNI: NO
Java wrappers: NO
Java tests: NO
Install to: D:/mingw-build-3.4.11/install
-----------------------------------------------------------------
Configuring done
After applying mingw32-make -j8 and mingw32-make install in CMD, it built successfully.
Then, I add D:\mingw-build-3.4.11\install\x64\mingw\bin to my System PATH and restarted my computer.
The step 10 tells me to download FindOpenCV.cmake and add it to project-root/cmake/. However, this link responsed 502 Bad Gateway, thus I jumped over this step.
The following is my project contents:
CMakeLists.txt
cmake_minimum_required(VERSION 3.6)
project(opencv)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/")
# Where to find CMake modules and OpenCV
set(OpenCV_DIR "D:\\mingw-build-3.4.11\\install")
find_package(OpenCV REQUIRED core highgui imgproc imgcodecs)
include_directories(${OpenCV_INCLUDE_DIRS})
add_executable(opencv opencv.cpp)
# add libs you need
set(OpenCV_LIBS opencv_core opencv_imgproc opencv_highgui opencv_imgcodecs)
# linking
target_link_libraries(opencv ${OpenCV_LIBS})
opencv.cpp
#include <opencv2/opencv.hpp>
using namespace cv;
int main() {
Mat mat = imread("1.jpg");
imshow("1", mat);
}
CMake build successfully like following:
"D:\Program Files\JetBrains\CLion 2020.1.2\bin\cmake\win\bin\cmake.exe" -DCMAKE_BUILD_TYPE=Debug -G "CodeBlocks - MinGW Makefiles" D:\Users\Administrator\Documents\Codes\CLionProjects\opencv
-- OpenCV ARCH: x64
-- OpenCV RUNTIME: mingw
-- OpenCV STATIC: OFF
-- Found OpenCV 3.4.11 in D:/mingw-build-3.4.11/install/x64/mingw/lib
-- You might need to add D:/mingw-build-3.4.11/install/x64/mingw/bin to your PATH to be able to run your applications.
-- Configuring done
-- Generating done
-- Build files have been written to: D:/Users/Administrator/Documents/Codes/CLionProjects/opencv/cmake-build-debug
[Finished]
However, everytime I run this application, compiler keeps telling me:
====================[ Build | opencv | Debug ]==================================
"D:\Program Files\JetBrains\CLion 2020.1.2\bin\cmake\win\bin\cmake.exe" --build D:\Users\Administrator\Documents\Codes\CLionProjects\opencv\cmake-build-debug --target opencv -- -j 4
[ 50%] Linking CXX executable opencv.exe
CMakeFiles\opencv.dir/objects.a(opencv.cpp.obj): In function `main':
D:/Users/Administrator/Documents/Codes/CLionProjects/opencv/opencv.cpp:6: undefined reference to `cv::imread(cv::String const&, int)'
D:/Users/Administrator/Documents/Codes/CLionProjects/opencv/opencv.cpp:7: undefined reference to `cv::imshow(cv::String const&, cv::_InputArray const&)'
CMakeFiles\opencv.dir/objects.a(opencv.cpp.obj): In function `cv::String::String(char const*)':
D:/mingw-build-3.4.11/install/include/opencv2/core/cvstd.hpp:602: undefined reference to `cv::String::allocate(unsigned long long)'
CMakeFiles\opencv.dir/objects.a(opencv.cpp.obj): In function `cv::String::~String()':
D:/mingw-build-3.4.11/install/include/opencv2/core/cvstd.hpp:648: undefined reference to `cv::String::deallocate()'
CMakeFiles\opencv.dir/objects.a(opencv.cpp.obj): In function `cv::String::operator=(cv::String const&)':
D:/mingw-build-3.4.11/install/include/opencv2/core/cvstd.hpp:656: undefined reference to `cv::String::deallocate()'
CMakeFiles\opencv.dir/objects.a(opencv.cpp.obj): In function `cv::Mat::~Mat()':
D:/mingw-build-3.4.11/install/include/opencv2/core/mat.inl.hpp:786: undefined reference to `cv::fastFree(void*)'
CMakeFiles\opencv.dir/objects.a(opencv.cpp.obj): In function `cv::Mat::release()':
D:/mingw-build-3.4.11/install/include/opencv2/core/mat.inl.hpp:898: undefined reference to `cv::Mat::deallocate()'
collect2.exe: error: ld returned 1 exit status
mingw32-make.exe[3]: *** [CMakeFiles\opencv.dir\build.make:91: opencv.exe] Error 1
mingw32-make.exe[2]: *** [CMakeFiles\Makefile2:75: CMakeFiles/opencv.dir/all] Error 2
mingw32-make.exe[1]: *** [CMakeFiles\Makefile2:82: CMakeFiles/opencv.dir/rule] Error 2
mingw32-make.exe: *** [Makefile:117: opencv] Error 2
Actually no error founded in code check. Moreover, I can find the imread source code through click function with CTRL button pressed.
After building OpenCV with MinGW-w64 I usually do this:
INSTALLPREFIX=installation_path_supplied_as_CMAKE_INSTALL_PREFIX
cp -f build/unix-install/*.pc $INSTALLPREFIX/lib/pkgconfig/
mkdir -p $INSTALLPREFIX/share/OpenCV
mv $INSTALLPREFIX/*.cmake $INSTALLPREFIX/share/OpenCV/
That usually helps get OpenCV to get detected.

Opencv build error: relocation R_X86_64_PC32 against symbol `ff_pw_9' ... recompile with -fPIC

I am trying to build opencv like this:
wget -nc -O opencv.tar.gz https://github.com/opencv/opencv/archive/4.1.2.tar.gz
wget -nc -O opencv_contrib.tar.gz https://github.com/opencv/opencv_contrib/archive/4.1.2.tar.gz
echo extracting opencv
tar xzf opencv.tar.gz
tar xzf opencv_contrib.tar.gz
mkdir opencv-build
cd opencv-build
cmake -D CMAKE_BUILD_TYPE=Release \
-D WITH_TBB=ON \
-D BUILD_PERF_TESTS=OFF \
-D BUILD_opencv_bioinspired=OFF \
-D WITH_V4L=ON -D BUILD_opencv_structured_light=OFF \
-D BUILD_opencv_python2=OFF \
-D BUILD_opencv_python3=ON \
-D WITH_CUDA=OFF -D WITH_GSTREAMER=OFF \
-D BUILD_opencv_stereo=OFF \
-D BUILD_opencv_gapi=ON \
-D BUILD_opencv_objdetect=ON \
-D BUILD_opencv_xobjdetect=ON \
-D BUILD_opencv_stitching=OFF \
-D BUILD_opencv_superres=OFF \
-D BUILD_opencv_surface_matching=OFF \
-D BUILD_opencv_text=OFF \
-D BUILD_opencv_face=OFF \
-D BUILD_opencv_xphoto=OFF \
-D BUILD_opencv_calib3d=ON \
-D BUILD_opencv_core=ON \
-D BUILD_opencv_dnn=ON \
-D BUILD_opencv_cvv=OFF \
-D BUILD_opencv_world=OFF \
-D BUILD_TESTS=OFF \
-D BUILD_opencv_python=OFF \
-D WITH_QT=ON \
-D WITH_OPENGL=ON \
-D OPENCV_EXTRA_MODULES_PATH=../opencv_contrib-4.1.2/modules \
-D BUILD_EXAMPLES=OFF ../opencv-4.1.2
make -j12
It seems to be able to configure itself:
-- Detected processor: x86_64
-- Looking for ccache - not found
-- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found suitable version "1.2.11", minimum required is "1.2.3")
-- Could NOT find JPEG (missing: JPEG_LIBRARY JPEG_INCLUDE_DIR)
-- libjpeg-turbo: VERSION = 2.0.2, BUILD = opencv-4.1.2-libjpeg-turbo
-- Could NOT find TIFF (missing: TIFF_LIBRARY TIFF_INCLUDE_DIR)
-- Could NOT find Jasper (missing: JASPER_LIBRARIES JASPER_INCLUDE_DIR)
-- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found version "1.2.11")
-- Could NOT find PNG (missing: PNG_LIBRARY PNG_PNG_INCLUDE_DIR)
-- found Intel IPP (ICV version): 2019.0.0 [2019.0.0 Gold]
-- at: /home/stiv2/jsoft-1.0/opencv-build/3rdparty/ippicv/ippicv_lnx/icv
-- found Intel IPP Integration Wrappers sources: 2019.0.0
-- at: /home/stiv2/jsoft-1.0/opencv-build/3rdparty/ippicv/ippicv_lnx/iw
-- Could not find OpenBLAS include. Turning OpenBLAS_FOUND off
-- Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off
-- Could NOT find Atlas (missing: Atlas_CBLAS_INCLUDE_DIR Atlas_CLAPACK_INCLUDE_DIR Atlas_CBLAS_LIBRARY Atlas_BLAS_LIBRARY Atlas_LAPACK_LIBRARY)
-- A library with BLAS API not found. Please specify library location.
-- LAPACK requires BLAS
-- A library with LAPACK API not found. Please specify library location.
-- Could NOT find JNI (missing: JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 JAVA_AWT_INCLUDE_PATH)
-- VTK is not found. Please set -DVTK_DIR in CMake to VTK build directory, or to VTK install subdirectory with VTKConfig.cmake file
-- OpenCV Python: during development append to PYTHONPATH: /home/stiv2/jsoft-1.0/opencv-build/python_loader
-- Caffe: NO
-- Protobuf: NO
-- Glog: NO
-- Checking for module 'freetype2'
-- No package 'freetype2' found
-- freetype2: NO
-- harfbuzz: YES (ver 1.7.2)
-- Could NOT find HDF5 (missing: HDF5_LIBRARIES HDF5_INCLUDE_DIRS) (found version "")
-- Module opencv_ovis disabled because OGRE3D was not found
-- No preference for use of exported gflags CMake configuration set, and no hints for include/library directories provided. Defaulting to preferring an installed/exported gflags CMake configuration if available.
-- Failed to find installed gflags CMake configuration, searching for gflags build directories exported with CMake.
-- Failed to find gflags - Failed to find an installed/exported CMake configuration for gflags, will perform search for installed gflags components.
-- Failed to find gflags - Could not find gflags include directory, set GFLAGS_INCLUDE_DIR to directory containing gflags/gflags.h
-- Failed to find glog - Could not find glog include directory, set GLOG_INCLUDE_DIR to directory containing glog/logging.h
-- Module opencv_sfm disabled because the following dependencies are not found: Eigen Glog/Gflags
-- Checking for module 'tesseract'
-- No package 'tesseract' found
-- Tesseract: NO
-- Registering hook 'INIT_MODULE_SOURCES_opencv_dnn': /home/stiv2/jsoft-1.0/opencv-4.1.2/modules/dnn/cmake/hooks/INIT_MODULE_SOURCES_opencv_dnn.cmake
-- opencv_dnn: filter out cuda4dnn source code
--
-- General configuration for OpenCV 4.1.2 =====================================
-- Version control: 3e33837e-dirty
--
-- Extra modules:
-- Location (extra): /home/stiv2/jsoft-1.0/opencv_contrib-4.1.2/modules
-- Version control (extra): 3e33837e-dirty
--
-- Platform:
-- Timestamp: 2020-05-21T18:21:21Z
-- Host: Linux 5.3.0-51-generic x86_64
-- CMake: 3.10.2
-- CMake generator: Unix Makefiles
-- CMake build tool: /usr/bin/make
-- Configuration: Release
--
-- CPU/HW features:
-- Baseline: SSE SSE2 SSE3
-- requested: SSE3
-- Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX
-- requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
-- SSE4_1 (14 files): + SSSE3 SSE4_1
-- SSE4_2 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2
-- FP16 (0 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
-- AVX (4 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
-- AVX2 (27 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
-- AVX512_SKX (3 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_COMMON AVX512_SKX
--
-- C/C++:
-- Built as dynamic libs?: YES
-- C++ Compiler: /usr/bin/c++ (ver 7.5.0)
-- 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 -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -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 -Wuninitialized -Winit-self -Wsuggest-override -Wno-delete-non-virtual-dtor -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -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 -Wuninitialized -Winit-self -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -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 -Wuninitialized -Winit-self -Wno-comment -Wimplicit-fallthrough=3 -Wno-strict-overflow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG
-- Linker flags (Release): -Wl,--gc-sections
-- Linker flags (Debug): -Wl,--gc-sections
-- ccache: NO
-- Precompiled headers: NO
-- Extra dependencies: dl m pthread rt /usr/lib/x86_64-linux-gnu/libOpenGL.so /usr/lib/x86_64-linux-gnu/libGLX.so /usr/lib/x86_64-linux-gnu/libGLU.so
-- 3rdparty dependencies:
--
-- OpenCV modules:
-- To be built: aruco bgsegm calib3d ccalib core datasets dnn dnn_objdetect dnn_superres dpm features2d flann fuzzy gapi hfs highgui img_hash imgcodecs imgproc line_descriptor ml objdetect optflow phase_unwrapping photo plot python3 quality reg rgbd saliency shape tracking video videoio videostab xfeatures2d ximgproc xobjdetect
-- Disabled: bioinspired cvv face stereo stitching structured_light superres surface_matching text world xphoto
-- Disabled by dependency: -
-- Unavailable: cnn_3dobj cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev freetype hdf java js matlab ovis python2 sfm ts viz
-- Applications: apps
-- Documentation: NO
-- Non-free algorithms: NO
--
-- GUI:
-- QT: YES (ver 5.9.5)
-- QT OpenGL support: YES (Qt5::OpenGL 5.9.5)
-- GTK+: NO
-- OpenGL support: YES (/usr/lib/x86_64-linux-gnu/libOpenGL.so /usr/lib/x86_64-linux-gnu/libGLX.so /usr/lib/x86_64-linux-gnu/libGLU.so)
-- VTK support: NO
--
-- Media I/O:
-- ZLib: /usr/lib/x86_64-linux-gnu/libz.so (ver 1.2.11)
-- JPEG: libjpeg-turbo (ver 2.0.2-62)
-- WEBP: build (ver encoder: 0x020e)
-- PNG: build (ver 1.6.37)
-- TIFF: build (ver 42 - 4.0.10)
-- JPEG 2000: build (ver 1.900.1)
-- OpenEXR: build (ver 2.3.0)
-- HDR: YES
-- SUNRASTER: YES
-- PXM: YES
-- PFM: YES
--
-- Video I/O:
-- DC1394: YES (2.2.5)
-- FFMPEG: YES
-- avcodec: YES (58.71.100)
-- avformat: YES (58.38.101)
-- avutil: YES (56.41.100)
-- swscale: YES (5.6.100)
-- avresample: YES (3.7.0)
-- v4l/v4l2: YES (linux/videodev2.h)
--
-- Parallel framework: pthreads
--
-- Trace: YES (with Intel ITT)
--
-- Other third-party libraries:
-- Intel IPP: 2019.0.0 Gold [2019.0.0]
-- at: /home/stiv2/jsoft-1.0/opencv-build/3rdparty/ippicv/ippicv_lnx/icv
-- Intel IPP IW: sources (2019.0.0)
-- at: /home/stiv2/jsoft-1.0/opencv-build/3rdparty/ippicv/ippicv_lnx/iw
-- Lapack: NO
-- Eigen: NO
-- Custom HAL: NO
-- Protobuf: build (3.5.1)
--
-- OpenCL: YES (no extra features)
-- Include path: /home/stiv2/jsoft-1.0/opencv-4.1.2/3rdparty/include/opencl/1.2
-- Link libraries: Dynamic load
--
-- Python 3:
-- Interpreter: /usr/bin/python3 (ver 3.6.9)
-- Libraries: /usr/lib/x86_64-linux-gnu/libpython3.6m.so (ver 3.6.9)
-- numpy: /home/stiv2/.local/lib/python3.6/site-packages/numpy/core/include (ver 1.18.1)
-- install path: lib/python3.6/dist-packages/cv2/python-3.6
--
-- Python (for build): /usr/bin/python2.7
--
-- Java:
-- ant: NO
-- JNI: NO
-- Java wrappers: NO
-- Java tests: NO
--
-- Install to: /usr/local
-- -----------------------------------------------------------------
--
-- Configuring done
-- Generating done
-- Build files have been written to: /home/stiv2/jsoft-1.0/opencv-build
but when I make it, I suddenly get this:
[ 78%] Linking CXX shared library ../../lib/libopencv_videoio.so
/usr/bin/ld: /usr/local/lib/libavcodec.a(vc1dsp_mmx.o): relocation R_X86_64_PC32 against symbol `ff_pw_9' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: final link failed: Bad value
collect2: error: ld returned 1 exit status
modules/videoio/CMakeFiles/opencv_videoio.dir/build.make:415: recipe for target 'lib/libopencv_videoio.so.4.1.2' failed
make[2]: *** [lib/libopencv_videoio.so.4.1.2] Error 1
CMakeFiles/Makefile2:3689: recipe for target 'modules/videoio/CMakeFiles/opencv_videoio.dir/all' failed
make[1]: *** [modules/videoio/CMakeFiles/opencv_videoio.dir/all] Error 2
Makefile:162: recipe for target 'all' failed
make: *** [all] Error 2
what is this and how can I fix it?

CMake difficulties using OpenCV compiled with CUDA

I'm implementing a video stitching paper and using CMake to generate make file. It seems like CMake is somehow failed to pass correct args for compiler when it compiles a code with OpenCV's stitching module (especially blender part). The make progress stops with this error:
/usr/bin/c++ -DOPENCV_TRAITS_ENABLE_DEPRECATED -I/home/kra/dev/Stitcher/include -isystem /usr/local/include -isystem /usr/local/include/opencv -Wall -Wextra -O3 -DNDEBUG -std=gnu++11 -o CMakeFiles/stitcher.dir/src/solver.cpp.o -c /home/kra/dev/Stitcher/src/solver.cpp
In file included from /usr/include/c++/5/vector:64:0,
from /usr/include/c++/5/bits/random.h:34,
from /usr/include/c++/5/random:49,
from /usr/include/c++/5/bits/stl_algo.h:66,
from /usr/include/c++/5/algorithm:62,
from /usr/local/include/opencv2/core/base.hpp:55,
from /usr/local/include/opencv2/core.hpp:54,
from /usr/local/include/opencv2/stitching/detail/blenders.hpp:50,
from /home/kra/dev/Stitcher/src/utilities.cpp:1:
/usr/include/c++/5/bits/stl_vector.h: In instantiation of ‘std::_Vector_base<_Tp, _Alloc>::~_Vector_base() [with _Tp = cv::cuda::GpuMat; _Alloc = std::allocator<cv::cuda::GpuMat>]’:
/usr/include/c++/5/bits/stl_vector.h:425:33: required from ‘std::vector<_Tp, _Alloc>::~vector() [with _Tp = cv::cuda::GpuMat; _Alloc = std::allocator<cv::cuda::GpuMat>]’
/usr/local/include/opencv2/stitching/detail/blenders.hpp:126:18: required from here
/usr/include/c++/5/bits/stl_vector.h:161:9: error: invalid use of incomplete type ‘class cv::cuda::GpuMat’
- this->_M_impl._M_start); }
^
In file included from /usr/local/include/opencv2/core.hpp:54:0,
from /usr/local/include/opencv2/stitching/detail/blenders.hpp:50,
from /home/kra/dev/Stitcher/src/utilities.cpp:1:
/usr/local/include/opencv2/core/base.hpp:717:22: note: forward declaration of ‘class cv::cuda::GpuMat’
class CV_EXPORTS GpuMat;
Ubuntu 16.04
OpenCV 3.4.1
My CMake looks like below:
CMAKE_MINIMUM_REQUIRED (VERSION 3.2)
PROJECT(VideoStitcher CXX)
FIND_PACKAGE(OpenCV REQUIRED)
INCLUDE_DIRECTORIES(include)
SET(CMAKE_CXX_STANDARD 11)
SET(CMAKE_VERBOSE_MAKEFILE ON)
if(NOT CMAKE_BUILD_TYPE)
SET(CMAKE_BUILD_TYPE Release)
endif()
SET(CMAKE_CXX_FLAGS "-Wall -Wextra")
FILE(GLOB all_sources "src/*.cpp")
ADD_EXECUTABLE(stitcher ${all_sources})
TARGET_LINK_LIBRARIES(
stitcher
boost_filesystem
boost_system
${OpenCV_LIBS}
)
It's weird because OpenCV successfully built all CPP examples and I can even build stitching_detailed.cpp example with CMake similar to above. Below is my OpenCV build info:
-- General configuration for OpenCV 3.4.1 =====================================
-- Version control: 3.4.1
--
-- Extra modules:
-- Location (extra): /home/kra/Softwares/opencv_contrib/modules
-- Version control (extra): 3.4.1-dirty
--
-- Platform:
-- Timestamp: 2018-06-06T22:48:37Z
-- Host: Linux 4.13.0-43-generic x86_64
-- CMake: 3.5.2
-- CMake generator: Unix Makefiles
-- CMake build tool: /usr/bin/make
-- Configuration: RelWithDebInfo
--
-- CPU/HW features:
-- Baseline: SSE SSE2 SSE3
-- requested: SSE3
-- Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX
-- requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
-- SSE4_1 (3 files): + SSSE3 SSE4_1
-- SSE4_2 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2
-- FP16 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
-- AVX (5 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
-- AVX2 (9 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
-- AVX512_SKX (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_SKX
--
-- C/C++:
-- Built as dynamic libs?: YES
-- C++ Compiler: /usr/bin/c++ (ver 5.4.0)
-- 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 -Wuninitialized -Winit-self -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -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 -Wuninitialized -Winit-self -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -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 -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -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 -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffunction-sections -fdata-sections -msse -msse2 -msse3 -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG
-- Linker flags (Release):
-- Linker flags (Debug):
-- ccache: NO
-- Precompiled headers: YES
-- Extra dependencies: dl m pthread rt cudart nppc nppial nppicc nppicom nppidei nppif nppig nppim nppist nppisu nppitc npps cublas cufft -L/usr/local/cuda-8.0/lib64
-- 3rdparty dependencies:
--
-- OpenCV modules:
-- To be built: aruco bgsegm bioinspired calib3d ccalib core cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev datasets dnn dnn_objdetect dpm face features2d flann freetype fuzzy hdf hfs highgui img_hash imgcodecs imgproc java_bindings_generator line_descriptor ml objdetect optflow phase_unwrapping photo plot python3 python_bindings_generator reg rgbd saliency sfm shape stereo stitching structured_light superres surface_matching text tracking video videoio videostab xfeatures2d ximgproc xobjdetect xphoto
-- Disabled: js world
-- Disabled by dependency: -
-- Unavailable: cnn_3dobj cvv dnn_modern java matlab ovis python2 ts viz
-- Applications: examples apps
-- Documentation: NO
-- Non-free algorithms: NO
--
-- GUI:
-- GTK+: YES (ver 3.18.9)
-- GThread : YES (ver 2.48.2)
-- GtkGlExt: NO
-- VTK support: NO
--
-- Media I/O:
-- ZLib: /home/kra/Softwares/anaconda3/lib/libz.so (ver 1.2.11)
-- JPEG: /home/kra/Softwares/anaconda3/lib/libjpeg.so (ver 90)
-- WEBP: build (ver encoder: 0x020e)
-- PNG: /home/kra/Softwares/anaconda3/lib/libpng.so (ver 1.6.32)
-- TIFF: /home/kra/Softwares/anaconda3/lib/libtiff.so (ver 42 / 4.0.8)
-- JPEG 2000: /usr/lib/x86_64-linux-gnu/libjasper.so (ver 1.900.1)
-- OpenEXR: build (ver 1.7.1)
--
-- Video I/O:
-- DC1394: NO
-- FFMPEG: YES
-- avcodec: YES (ver 56.60.100)
-- avformat: YES (ver 56.40.101)
-- avutil: YES (ver 54.31.100)
-- swscale: YES (ver 3.1.101)
-- avresample: NO
-- GStreamer: NO
-- libv4l/libv4l2: NO
-- v4l/v4l2: linux/videodev2.h
-- gPhoto2: NO
--
-- Parallel framework: pthreads
--
-- Trace: YES (with Intel ITT)
--
-- Other third-party libraries:
-- Intel IPP: 2017.0.3 [2017.0.3]
-- at: /home/kra/Softwares/opencv/build/3rdparty/ippicv/ippicv_lnx
-- Intel IPP IW: sources (2017.0.3)
-- at: /home/kra/Softwares/opencv/build/3rdparty/ippicv/ippiw_lnx
-- Lapack: NO
-- Eigen: YES (ver 3.2.92)
-- Custom HAL: NO
-- Protobuf: build (3.5.1)
--
-- NVIDIA CUDA: YES (ver 8.0, CUFFT CUBLAS)
-- NVIDIA GPU arch: 20 30 35 37 50 52 60 61
-- NVIDIA PTX archs:
--
-- OpenCL: YES (no extra features)
-- Include path: /home/kra/Softwares/opencv/3rdparty/include/opencl/1.2
-- Link libraries: Dynamic load
--
-- Python 3:
-- Interpreter: /home/kra/Softwares/anaconda3/bin/python3 (ver 3.6.2)
-- Libraries: /usr/lib/x86_64-linux-gnu/libpython3.5m.so.1 (ver 3.6.2)
-- numpy: /home/kra/Softwares/anaconda3/lib/python3.6/site-packages/numpy/core/include (ver 1.13.3)
-- packages path: lib/python3.6/site-packages
--
-- Python (for build): /home/kra/Softwares/anaconda3/envs/oc/bin/python3.5
-- Pylint: /home/kra/Softwares/anaconda3/bin/pylint (ver: 1.7.2, checks: 116)
--
-- Java:
-- ant: NO
-- JNI: NO
-- Java wrappers: NO
-- Java tests: NO
--
-- Install to: /usr/local
-- -----------------------------------------------------------------
I tried various method to add CUDA to CMake but no luck. I can't find similar problem on Internet either.

cv::parallel_for_ not very big improvement

I'm testing the class cv::ParallelLoopBody for image processing code.
I first started implementing the normalization, where I've to divide all the pixels with certain values for each channel, which is an easy nice parallelized code.
However, when testing it, I don't see any difference.
Am I doing something wrong here?
This is my class:
class Parallel_process : public cv::ParallelLoopBody
{
private:
cv::Mat img; //my image to normalize
std::vector<int> A;
int diff;
public:
Parallel_process(cv::Mat inputImage, std::vector<int> AA, int diffVal)
: img(inputImage), A(AA), diff(diffVal){}
virtual void operator()(const cv::Range& range) const
{
for(int i = range.start; i < range.end; i++)
{
//in is a patch of my original image
cv::Mat in(img, cv::Rect(0, (img.rows/diff)*i, img.cols, img.rows/diff));
std::vector<int> AAA (A);
in.forEach<cv::Vec3f>
(
[&AAA](cv::Vec3f &pixel, const int* po) -> void
{
pixel[0]/=AAA[0];
pixel[1]/=AAA[1];
pixel[2]/=AAA[2];
}
);
}
}
};
and in main() function I'm calling my operator like so:
cv::parallel_for_(cv::Range(0, 91), Parallel_process(img, AA, 91)); //my image is 1288*728 size so 728/91=8
EDIT
This my OpenCV configuation:
General configuration for OpenCV 3.3.1 =====================================
Version control: unknown
Extra modules:
Location (extra): /home/jrsros/opencv_contrib-3.3.1/modules
Version control (extra): unknown
Platform:
Timestamp: 2017-12-14T13:05:47Z
Host: Linux 4.10.0-40-generic x86_64
CMake: 3.5.1
CMake generator: Unix Makefiles
CMake build tool: /usr/bin/make
Configuration: Release
CPU/HW features:
Baseline: SSE SSE2 SSE3
requested: SSE3
Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2
requested: SSE4_1 SSE4_2 AVX FP16 AVX2
SSE4_1 (3 files): + SSSE3 SSE4_1
SSE4_2 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2
FP16 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
AVX (5 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
AVX2 (8 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
C/C++:
Built as dynamic libs?: YES
C++11: YES
C++ Compiler: /usr/bin/c++ (ver 7.2.0)
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 -Wuninitialized -Winit-self -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -Wno-implicit-fallthrough -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffast-math -ffunction-sections -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -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 -Wuninitialized -Winit-self -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -Wno-implicit-fallthrough -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffast-math -ffunction-sections -msse -msse2 -msse3 -fvisibility=hidden -fvisibility-inlines-hidden -fopenmp -g -O0 -DDEBUG -D_DEBUG
C Compiler: /usr/bin/gcc-5
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 -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffast-math -ffunction-sections -msse -msse2 -msse3 -fvisibility=hidden -fopenmp -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 -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -ffast-math -ffunction-sections -msse -msse2 -msse3 -fvisibility=hidden -fopenmp -g -O0 -DDEBUG -D_DEBUG
Linker flags (Release):
Linker flags (Debug):
ccache: NO
Precompiled headers: NO
Extra dependencies: dl m pthread rt /usr/lib/x86_64-linux-gnu/libGLU.so /usr/lib/x86_64-linux-gnu/libGL.so /usr/lib/x86_64-linux-gnu/libtbb.so cudart nppc nppial nppicc nppicom nppidei nppif nppig nppim nppist nppisu nppitc npps cublas cufft -L/usr/local/cuda-8.0/lib64
3rdparty dependencies:
OpenCV modules:
To be built: cudev core cudaarithm flann hdf imgproc ml objdetect phase_unwrapping plot reg surface_matching video viz xphoto bgsegm cudabgsegm cudafilters cudaimgproc cudawarping dnn face freetype fuzzy img_hash imgcodecs photo shape videoio xobjdetect cudacodec highgui bioinspired dpm features2d line_descriptor saliency text calib3d ccalib cudafeatures2d cudalegacy cudaobjdetect cudaoptflow cudastereo datasets rgbd stereo structured_light superres tracking videostab xfeatures2d ximgproc aruco optflow stitching python2
Disabled: js world contrib_world
Disabled by dependency: -
Unavailable: java python3 ts cnn_3dobj cvv dnn_modern matlab sfm
GUI:
QT: NO
GTK+ 2.x: YES (ver 2.24.30)
GThread : YES (ver 2.48.2)
GtkGlExt: YES (ver 1.2.0)
OpenGL support: YES (/usr/lib/x86_64-linux-gnu/libGLU.so /usr/lib/x86_64-linux-gnu/libGL.so)
VTK support: YES (ver 6.2.0)
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 1.2.54)
TIFF: /usr/lib/x86_64-linux-gnu/libtiff.so (ver 42 - 4.0.6)
JPEG 2000: /usr/lib/x86_64-linux-gnu/libjasper.so (ver 1.900.1)
OpenEXR: build (ver 1.7.1)
GDAL: NO
GDCM: NO
Video I/O:
DC1394 1.x: NO
DC1394 2.x: NO
FFMPEG: YES
avcodec: YES (ver 56.60.100)
avformat: YES (ver 56.40.101)
avutil: YES (ver 54.31.100)
swscale: YES (ver 3.1.101)
avresample: NO
GStreamer:
base: YES (ver 1.8.3)
video: YES (ver 1.8.3)
app: YES (ver 1.8.3)
riff: YES (ver 1.8.3)
pbutils: YES (ver 1.8.3)
OpenNI: NO
OpenNI PrimeSensor Modules: NO
OpenNI2: NO
PvAPI: NO
GigEVisionSDK: NO
Aravis SDK: NO
UniCap: NO
UniCap ucil: NO
V4L/V4L2: NO/YES
XIMEA: NO
Xine: NO
Intel Media SDK: NO
gPhoto2: NO
Parallel framework: TBB (ver 4.4 interface 9002)
Trace: YES (with Intel ITT)
Other third-party libraries:
Use Intel IPP: 2017.0.3 [2017.0.3]
at: /home/jrsros/opencv-3.3.1/build/3rdparty/ippicv/ippicv_lnx
Use Intel IPP IW: sources (2017.0.3)
at: /home/jrsros/opencv-3.3.1/build/3rdparty/ippicv/ippiw_lnx
Use VA: NO
Use Intel VA-API/OpenCL: NO
Use Lapack: NO
Use Eigen: YES (ver 3.2.92)
Use Cuda: YES (ver 8.0)
Use OpenCL: YES
Use OpenVX: NO
Use custom HAL: NO
NVIDIA CUDA
Use CUFFT: YES
Use CUBLAS: YES
USE NVCUVID: NO
NVIDIA GPU arch: 20 30 35 37 50 52 60 61
NVIDIA PTX archs:
Use fast math: YES
OpenCL: <Dynamic loading of OpenCL library>
Include path: /home/jrsros/opencv-3.3.1/3rdparty/include/opencl/1.2
Use AMDFFT: NO
Use AMDBLAS: NO
Python 2:
Interpreter: /usr/bin/python2.7 (ver 2.7.12)
Libraries: /usr/lib/x86_64-linux-gnu/libpython2.7.so (ver 2.7.12)
numpy: /usr/lib/python2.7/dist-packages/numpy/core/include (ver 1.11.0)
packages path: lib/python2.7/dist-packages
Python 3:
Interpreter: /usr/bin/python3 (ver 3.5.2)
Python (for build): /usr/bin/python2.7
Java:
ant: NO
JNI: NO
Java wrappers: NO
Java tests: NO
Matlab:
mex: /usr/local/MATLAB/R2017b/bin/mex
Compiler/generator: Not working (bindings will not be generated)
Documentation:
Doxygen: NO
Tests and samples:
Tests: NO
Performance tests: NO
C/C++ Examples: NO
Install path: /usr/local
cvconfig.h is in: /home/jrsros/opencv-3.3.1/build
-----------------------------------------------------------------
An example of code I'm using to test my parallelism:
#include <opencv2/core.hpp>
#include <opencv2/highgui.hpp>
#include <opencv2/imgproc.hpp>
#include <opencv2/imgcodecs.hpp>
#include <opencv2/core/utility.hpp>
#include <iostream>
#include <sys/time.h>
class Parallel_process : public cv::ParallelLoopBody
{
private:
cv::Mat img;
std::vector<int> A;
int diff;
public:
Parallel_process(cv::Mat inputImgage, std::vector<int> AA, int diffVal)
: img(inputImgage), A(AA), diff(diffVal){}
virtual void operator()(const cv::Range& range) const
{
for(int i = range.start; i < range.end; i++)
{
cv::Mat in(img, cv::Rect(0, (img.rows/diff)*i, img.cols, img.rows/diff));
std::vector<int> AAA (A);
in.forEach<cv::Vec3f>
(
[&AAA](cv::Vec3f &pixel, const int* po) -> void
{
pixel[0]/=AAA[0];
pixel[1]/=AAA[1];
pixel[2]/=AAA[2];
}
);
}
}
};
int main(int argc, char* argv[])
{
cv::Mat src=cv::imread(argv[1]);
std::vector<std::vector<int> > AA;
//compute AA here
double timeStart=tic(), timeEnd=0;
//Normalize the image /AA
cv::parallel_for_(cv::Range(0, 91), Parallel_process(src, AA, 91));
timeEnd = tic() - timeStart;
std::cout << "ALL " <<1/timeEnd << std::endl<< std::endl; //FPS
return 0;
}
I'm compiling my code on linux ubuntu Core i7-2630QM 2Ghz * 8 threads (4 cores):
g++ -std=c++1z -Wall -Weffc++ -Ofast -march=native test4.cpp -o test4 `pkg-config --cflags --libs opencv`
EDIT2
In htop I see that it is using all the threads at the end
1 2 3 4 5 6 7 8
Variant 1
threads,mean(us),min(us),max(us)
1,18798.2,18106,22780
2,9762.84,9427,10397
3,6813.55,6765,9296
4,5317.75,5088,7433
5,5067.11,4931,7552
6,4925.41,4780,9473
7,4797.74,4641,9492
8,4798.18,4504,27244
1 2 3 4 5 6 7 8
Variant 2
threads,mean(us),min(us),max(us)
1,18512.8,17780,20084
2,9788.73,9302,11338
3,6850.47,6671,9765
4,5209.64,5022,8831
5,5052.46,4881,7041
6,6851.99,4762,11422
7,5077.32,4624,9886