Error calling cv.imread() -- MxArray not of type char
BadWindshield opened this issue · 15 comments
BadWindshield commented
- I am running Ubuntu 18.04, and compiled & installed my own OpenCV 3.4.1 . Instead of preloading libraries, I set up symbolic links for these three MATLAB .so's:
lrwxrwxrwx 1 root root 35 Nov 3 16:45 libgcc_s.so.1 -> /lib/x86_64-linux-gnu/libgcc_s.so.1
lrwxrwxrwx 1 root root 45 Nov 3 16:22 libstdc++.so.6 -> /usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.25
lrwxrwxrwx 1 root root 37 Nov 3 16:53 libtbb.so.2 -> /usr/lib/x86_64-linux-gnu/libtbb.so.2
- I was able to run unit tests inside MATLAB
>> UnitTest('ContribModules',true)
...
1411 Passed, 7 Failed, 54 Incomplete
- However, when I try to load an image using
cv.imread(), I get
>> im = cv.imread("test/stuff.jpg")
Error using imread
MxArray not of type char
- This might be another symptom. When I run
make test, it will hang at theTestFilterSpecklestest.
BadWindshield commented
OMG I figured it out. After programming in C++ and Python for a while, I forgot that strings in MATLAB use single quotes.
amroamroamro commented
Right, MATLAB R2016b introduced string arrays as a new data type for text, created with double-quotes. The original single-quotes create character arrays, which are like regular numeric arrays storing characters instead of numbers.
https://www.mathworks.com/help/matlab/characters-and-strings.html
If you come from C++ background, think of it like char* as a basic array of bytes vs. std::string as a container class for text.
amroamroamro commented
Also I'm curious, what are the "7 failed" tests above?
BadWindshield commented
@amroamroamro I cannot reproduce the problem as the unit tests are no longer running through inside MATLAB =) It is hung somewhere.
When I ran make test, it is hung at TestFilterSpeckles.test_1. However, when I execute each line of TestFilterSpeckles.test_1 manually inside MATLAB, it runs through. Hmm
BadWindshield commented
By printing statements to stdout, I isolated the line that hangs during make test:
DD = cv.filterSpeckles(D, 0, 50, 16);
Any ideas? The same line of code ran ok inside MATLAB (using the regular GUI).
Inside the MATLAB GUI, I can also cd to test/unit_tests and ran
>> tf = TestFilterSpeckles()
tf =
TestFilterSpeckles with no properties.
>> tf.test_1()
I can open a new ticket to track this.
BadWindshield commented
Uninstalling g++ v 7.3.0 and installing g++ v 4.8.5 didn't help. The unit tests failed earlier at number somewhere in the 100s. This is so frustrating.
amroamroamro commented
Hmm, I don't see anything obvious why it would get stuck on that particular test..
Just to be sure, please run the following in MATLAB and post the output here:
>> version
>> cv.getBuildInformation()
>> ls(fullfile(matlabroot,'bin','glnxa64','libopencv*'))
>> !ldd /path/to/mexopencv/+cv/filterSpeckles.mexa64When you run the unit tests, specify UnitTest('ContribModules',true, 'Verbosity',2) and post the full output for the tests that fail. Also if for some reason MATLAB itself crashes, please also include any crash dumps.
BadWindshield commented
>> cv.getBuildInformation()
General configuration for OpenCV 3.4.1 =====================================
Version control: 3.4.1
Extra modules:
Location (extra): /home/williamw/Will/opencv_contrib/modules
Version control (extra): 3.4.1
Platform:
Timestamp: 2018-11-04T23:15:18Z
Host: Linux 4.15.0-38-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?: YES
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 -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -Wno-implicit-fallthrough -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 -Wno-implicit-fallthrough -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 -Wno-implicit-fallthrough -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 -Wno-implicit-fallthrough -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
3rdparty dependencies:
OpenCV modules:
To be built: aruco bgsegm bioinspired calib3d ccalib core datasets dnn dnn_objdetect dpm face features2d flann freetype fuzzy hfs highgui img_hash imgcodecs imgproc 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 matlab world
Disabled by dependency: -
Unavailable: cnn_3dobj cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv dnn_modern hdf java ovis sfm viz
Applications: tests perf_tests apps
Documentation: NO
Non-free algorithms: NO
GUI:
GTK+: YES (ver 2.24.32)
GThread : YES (ver 2.56.2)
GtkGlExt: 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 )
WEBP: build (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: build (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)
Video I/O:
DC1394: YES (ver 2.2.5)
FFMPEG: YES
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: NO
GStreamer: NO
libv4l/libv4l2: NO
v4l/v4l2: linux/videodev2.h
gPhoto2: YES
Parallel framework: pthreads
Trace: YES (with Intel ITT)
Other third-party libraries:
Intel IPP: 2017.0.3 [2017.0.3]
at: /home/williamw/Will/opencv/build/3rdparty/ippicv/ippicv_lnx
Intel IPP IW: sources (2017.0.3)
at: /home/williamw/Will/opencv/build/3rdparty/ippicv/ippiw_lnx
Lapack: YES (/usr/lib/x86_64-linux-gnu/liblapack.so /usr/lib/x86_64-linux-gnu/libcblas.so /usr/lib/x86_64-linux-gnu/libatlas.so)
Eigen: YES (ver 3.3.4)
Custom HAL: NO
Protobuf: build (3.5.1)
NVIDIA CUDA: NO
OpenCL: YES (no extra features)
Include path: /home/williamw/Will/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: /usr/local/lib/python2.7/dist-packages/numpy/core/include (ver 1.15.3)
packages path: lib/python2.7/dist-packages
Python 3:
Interpreter: /usr/bin/python3 (ver 3.6.6)
Libraries: /usr/lib/x86_64-linux-gnu/libpython3.6m.so (ver 3.6.6)
numpy: /usr/local/lib/python3.6/dist-packages/numpy/core/include (ver 1.15.3)
packages path: lib/python3.6/dist-packages
Python (for build): /usr/bin/python2.7
Java:
ant: NO
JNI: /usr/lib/jvm/default-java/include /usr/lib/jvm/default-java/include/linux /usr/lib/jvm/default-java/include
Java wrappers: NO
Java tests: NO
Matlab: YES
mex: /usr/local/MATLAB/R2017a/bin/mex
Compiler/generator: Not working (bindings will not be generated)
Install to: /usr/local
-----------------------------------------------------------------
BadWindshield commented
>> !ldd +cv/filterSpeckles.mexa64
linux-vdso.so.1 (0x00007ffec629a000)
libgtk3-nocsd.so.0 => /usr/lib/x86_64-linux-gnu/libgtk3-nocsd.so.0 (0x00007f297abe8000)
libopencv_calib3d.so.3.4 => /usr/local/lib/libopencv_calib3d.so.3.4 (0x00007f297a862000)
libopencv_imgcodecs.so.3.4 => /usr/local/lib/libopencv_imgcodecs.so.3.4 (0x00007f297a206000)
libopencv_imgproc.so.3.4 => /usr/local/lib/libopencv_imgproc.so.3.4 (0x00007f2977958000)
libopencv_core.so.3.4 => /usr/local/lib/libopencv_core.so.3.4 (0x00007f2976a36000)
libmx.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmx.so (0x00007f29766a4000)
libmex.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmex.so (0x00007f2976469000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f29760e0000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f2975ec8000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f2975ad7000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f29758d3000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f29756b4000)
libopencv_features2d.so.3.4 => /usr/local/lib/libopencv_features2d.so.3.4 (0x00007f29753e1000)
libopencv_flann.so.3.4 => /usr/local/lib/libopencv_flann.so.3.4 (0x00007f2975189000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f2974deb000)
libjpeg.so.8 => /usr/lib/x86_64-linux-gnu/libjpeg.so.8 (0x00007f2974b83000)
libpng16.so.16 => /usr/lib/x86_64-linux-gnu/libpng16.so.16 (0x00007f2974951000)
libtiff.so.5 => /usr/lib/x86_64-linux-gnu/libtiff.so.5 (0x00007f29746da000)
libIlmImf-2_2.so.22 => /usr/lib/x86_64-linux-gnu/libIlmImf-2_2.so.22 (0x00007f2974217000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f297400f000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f2973df2000)
liblapack.so.3 => /usr/lib/x86_64-linux-gnu/liblapack.so.3 (0x00007f2973533000)
libcblas.so.3 => /usr/lib/x86_64-linux-gnu/libcblas.so.3 (0x00007f2973311000)
libmwresource_core.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwresource_core.so (0x00007f297310f000)
libmwi18n.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwi18n.so (0x00007f2972dbe000)
libut.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libut.so (0x00007f2972ada000)
libmwfl.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwfl.so (0x00007f2972727000)
libmwfoundation_usm.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwfoundation_usm.so (0x00007f2972506000)
libboost_chrono.so.1.56.0 => /usr/local/MATLAB/R2017a/bin/glnxa64/libboost_chrono.so.1.56.0 (0x00007f2972300000)
libboost_date_time.so.1.56.0 => /usr/local/MATLAB/R2017a/bin/glnxa64/libboost_date_time.so.1.56.0 (0x00007f29720ef000)
libboost_filesystem.so.1.56.0 => /usr/local/MATLAB/R2017a/bin/glnxa64/libboost_filesystem.so.1.56.0 (0x00007f2971ed9000)
libboost_log.so.1.56.0 => /usr/local/MATLAB/R2017a/bin/glnxa64/libboost_log.so.1.56.0 (0x00007f2971bfc000)
libboost_regex.so.1.56.0 => /usr/local/MATLAB/R2017a/bin/glnxa64/libboost_regex.so.1.56.0 (0x00007f29718ec000)
libboost_signals.so.1.56.0 => /usr/local/MATLAB/R2017a/bin/glnxa64/libboost_signals.so.1.56.0 (0x00007f29716d6000)
libboost_system.so.1.56.0 => /usr/local/MATLAB/R2017a/bin/glnxa64/libboost_system.so.1.56.0 (0x00007f29714d3000)
libboost_thread.so.1.56.0 => /usr/local/MATLAB/R2017a/bin/glnxa64/libboost_thread.so.1.56.0 (0x00007f29712b2000)
libmwcpp11compat.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwcpp11compat.so (0x00007f2971094000)
libicudata.so.56 => /usr/local/MATLAB/R2017a/bin/glnxa64/libicudata.so.56 (0x00007f296f6ae000)
libicuuc.so.56 => /usr/local/MATLAB/R2017a/bin/glnxa64/libicuuc.so.56 (0x00007f296f311000)
libicui18n.so.56 => /usr/local/MATLAB/R2017a/bin/glnxa64/libicui18n.so.56 (0x00007f296ee8a000)
libicuio.so.56 => /usr/local/MATLAB/R2017a/bin/glnxa64/libicuio.so.56 (0x00007f296ec7d000)
libtbb.so.2 => /usr/lib/x86_64-linux-gnu/libtbb.so.2 (0x00007f296ea41000)
libtbbmalloc.so.2 => /usr/lib/x86_64-linux-gnu/libtbbmalloc.so.2 (0x00007f296e803000)
libmwservices.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwservices.so (0x00007f296e1fe000)
libmwmpath.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwmpath.so (0x00007f296df71000)
libmwm_dispatcher.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwm_dispatcher.so (0x00007f296dc72000)
libmwmlutil.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwmlutil.so (0x00007f296d41d000)
libmwgenerate_diag_message.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwgenerate_diag_message.so (0x00007f296d215000)
/lib64/ld-linux-x86-64.so.2 (0x00007f297b013000)
liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007f296cfef000)
libjbig.so.0 => /usr/lib/x86_64-linux-gnu/libjbig.so.0 (0x00007f296cde1000)
libHalf.so.12 => /usr/lib/x86_64-linux-gnu/libHalf.so.12 (0x00007f296cb9e000)
libIex-2_2.so.12 => /usr/lib/x86_64-linux-gnu/libIex-2_2.so.12 (0x00007f296c980000)
libIlmThread-2_2.so.12 => /usr/lib/x86_64-linux-gnu/libIlmThread-2_2.so.12 (0x00007f296c779000)
libblas.so.3 => /usr/lib/x86_64-linux-gnu/libblas.so.3 (0x00007f296c1b7000)
libgfortran.so.4 => /usr/lib/x86_64-linux-gnu/libgfortran.so.4 (0x00007f296bdd8000)
libatlas.so.3 => /usr/lib/x86_64-linux-gnu/libatlas.so.3 (0x00007f296b84f000)
libexpat.so.1 => /usr/local/MATLAB/R2017a/bin/glnxa64/libexpat.so.1 (0x00007f296b627000)
libcrypt.so.1 => /lib/x86_64-linux-gnu/libcrypt.so.1 (0x00007f296b3ef000)
libpam.so.0 => /lib/x86_64-linux-gnu/libpam.so.0 (0x00007f296b1e1000)
libboost_serialization.so.1.56.0 => /usr/local/MATLAB/R2017a/bin/glnxa64/libboost_serialization.so.1.56.0 (0x00007f296af81000)
libunwind.so.8 => /usr/local/MATLAB/R2017a/bin/glnxa64/libunwind.so.8 (0x00007f296ad62000)
libssl.so.1.0.0 => /usr/lib/x86_64-linux-gnu/libssl.so.1.0.0 (0x00007f296aafa000)
libcrypto.so.1.0.0 => /usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.0 (0x00007f296a6b7000)
libmwdisplay_device.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwdisplay_device.so (0x00007f296a4b0000)
libmwlivecode.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwlivecode.so (0x00007f296a26f000)
libmwcppmicroservices.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwcppmicroservices.so (0x00007f296a054000)
libmwregexp.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwregexp.so (0x00007f2969e0b000)
libmwsearch_path_interfaces.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwsearch_path_interfaces.so (0x00007f2969c06000)
libmwstoragefilefolderobserver.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwstoragefilefolderobserver.so (0x00007f296998d000)
libmwflstoragevfs.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwflstoragevfs.so (0x00007f29696c4000)
libmwcwf_interface.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwcwf_interface.so (0x00007f2969467000)
libmwsettingscore.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwsettingscore.so (0x00007f2969025000)
libmwms.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwms.so (0x00007f29689e3000)
libmwnativedisplay.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwnativedisplay.so (0x00007f29687d8000)
libmwopccore.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwopccore.so (0x00007f2968581000)
libmwopcmodel.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwopcmodel.so (0x00007f29682ad000)
libmwopczippackage.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwopczippackage.so (0x00007f296808a000)
libmwopcmwservices.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwopcmwservices.so (0x00007f2967e28000)
libmwwebproxy.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwwebproxy.so (0x00007f2967c1c000)
libmwkeybrd.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwkeybrd.so (0x00007f2967a18000)
libboost_iostreams.so.1.56.0 => /usr/local/MATLAB/R2017a/bin/glnxa64/libboost_iostreams.so.1.56.0 (0x00007f2967804000)
libCppMicroServices.so.3.0.0 => /usr/local/MATLAB/R2017a/bin/glnxa64/libCppMicroServices.so.3.0.0 (0x00007f296753f000)
libPocoCrypto.so.31 => /usr/local/MATLAB/R2017a/bin/glnxa64/libPocoCrypto.so.31 (0x00007f296731d000)
libPocoFoundation.so.31 => /usr/local/MATLAB/R2017a/bin/glnxa64/libPocoFoundation.so.31 (0x00007f2966f34000)
libPocoJSON.so.31 => /usr/local/MATLAB/R2017a/bin/glnxa64/libPocoJSON.so.31 (0x00007f2966ce2000)
libPocoNet.so.31 => /usr/local/MATLAB/R2017a/bin/glnxa64/libPocoNet.so.31 (0x00007f29669ba000)
libPocoNetSSL.so.31 => /usr/local/MATLAB/R2017a/bin/glnxa64/libPocoNetSSL.so.31 (0x00007f2966771000)
libPocoUtil.so.31 => /usr/local/MATLAB/R2017a/bin/glnxa64/libPocoUtil.so.31 (0x00007f29664fe000)
libPocoXML.so.31 => /usr/local/MATLAB/R2017a/bin/glnxa64/libPocoXML.so.31 (0x00007f296626d000)
libxerces-c-3.1.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libxerces-c-3.1.so (0x00007f2965bbd000)
libmwflnetwork.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwflnetwork.so (0x00007f2965913000)
libmwflstorageprovider.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwflstorageprovider.so (0x00007f29656d5000)
libmwstoragefileprovider.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwstoragefileprovider.so (0x00007f2965477000)
libmwstorageshlibstoragesys.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwstorageshlibstoragesys.so (0x00007f2965235000)
libmwflstorageevents.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwflstorageevents.so (0x00007f2965018000)
libmwcwf_implementation.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwcwf_implementation.so (0x00007f2964e10000)
libmwmatlabstoragesystem.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwmatlabstoragesystem.so (0x00007f2964c0d000)
libmwsearch_path_events.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwsearch_path_events.so (0x00007f2964a02000)
libmwsearch_path_impl.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwsearch_path_impl.so (0x00007f296473a000)
libmwsearch_path_utilities.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwsearch_path_utilities.so (0x00007f2964522000)
libmwddux.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwddux.so (0x00007f2964306000)
libmwxmlcore.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwxmlcore.so (0x00007f2964091000)
libmwfoundation_extdata_array.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwfoundation_extdata_array.so (0x00007f2963e6d000)
libquadmath.so.0 => /usr/lib/x86_64-linux-gnu/libquadmath.so.0 (0x00007f2963c2d000)
libaudit.so.1 => /lib/x86_64-linux-gnu/libaudit.so.1 (0x00007f2963a04000)
libmwflcrypto.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwflcrypto.so (0x00007f29637d7000)
libmwflcryptoutils.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwflcryptoutils.so (0x00007f29635cb000)
libmwflcryptocryptopp.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwflcryptocryptopp.so (0x00007f296307b000)
libminizip.so => /usr/lib/x86_64-linux-gnu/libminizip.so (0x00007f2962e70000)
libmwstoragesharedlib.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwstoragesharedlib.so (0x00007f2962c54000)
libmwmvm.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwmvm.so (0x00007f296270b000)
libcap-ng.so.0 => /lib/x86_64-linux-gnu/libcap-ng.so.0 (0x00007f2962506000)
libmwflcryptoopenssl.so => /usr/local/MATLAB/R2017a/bin/glnxa64/libmwflcryptoopenssl.so (0x00007f29622dc000)
BadWindshield commented
>> ls(fullfile(matlabroot,'bin','glnxa64','libopencv*'))
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_calib3d.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_calib3d.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_core.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_core.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudaarithm.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudaarithm.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudabgsegm.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudabgsegm.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudacodec.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudacodec.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudafeatures2d.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudafeatures2d.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudafilters.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudafilters.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudaimgproc.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudaimgproc.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudalegacy.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudalegacy.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudaobjdetect.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudaobjdetect.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudaoptflow.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudaoptflow.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudastereo.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudastereo.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudawarping.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudawarping.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudev.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_cudev.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_features2d.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_features2d.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_flann.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_flann.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_highgui.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_highgui.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_imgcodecs.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_imgcodecs.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_imgproc.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_imgproc.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_ml.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_ml.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_objdetect.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_objdetect.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_photo.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_photo.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_shape.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_shape.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_stitching.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_stitching.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_superres.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_superres.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_videoio.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_videoio.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_video.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_video.so.3.1.0
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_videostab.so.3.1
/usr/local/MATLAB/R2017a/bin/glnxa64/libopencv_videostab.so.3.1.0
amroamroamro commented
All good there. So that rules out any library conflicts I was suspecting..
Now can you run the unit tests and include the full output of any errors:
>> UnitTest('ContribModules',true, 'Verbosity',2)
BadWindshield commented
@amroamroamro Thanks for your help.
When the test fails, it hangs. I have to hit Ctrl-C to break the execution. There was no meaning output other than
[ 512 /1472] TestFilterSpeckles.test_1
amroamroamro commented
ok, if you're up to a bit of debugging:
>> dbstop in TestFilterSpeckles at 10
>> TestFilterSpeckles.test_1
>> whos
>> imshow(single(D)/16,[])
>> dbstep
If not, I'll look into it more, but for now you can comment-out that line (and the line after it), and see if the rest of the unit-tests would run to completion.
BadWindshield commented
I think the root cause was the well-known .so library incompatibility.
On a separate machine running Ubuntu 18.04, I use the built-in OpenCV 3.2.0 and sync the mexopencv to the v3.2.0 label. I had trouble running past test 153 (TestCalcBlurriness) until I renamed the libfreetype.so.6 in MATLAB.
I can now run through ALL of the unit tests:
$ make test
...
[1140/1141] TestWatershed.test_1 OK
[1141/1141] TestWatershed.test_error_argnum OK
Totals:
1119 Passed, 0 Failed, 22 Incomplete
Elapsed time is 49.144527 seconds.
This is the entire list of MATLAB .so's that I have to rename:
libstdc++
libgcc_s
libtbb
libtbbmalloc
libtiff
libxml2
libquadmath
libfreetype
amroamroamro commented
Oh right, the ldd check on the mex-file might not show indirect conflicts in the dependencies. Try running it on the opencv libs as well:
>> !ldd /usr/local/lib/libopencv_calib3d.so.3.4
and compare it to when you run it outside MATLAB in a terminal:
$ ldd /usr/local/lib/libopencv_calib3d.so.3.4
Look for differences and preload them (or rename and replace with symlinks as you did).
Be sure to check libopencv_imgcodecs and libopencv_videoio which are likely to have the most external dependencies (image formats and such).