Segmentation fault in GenerateMosaic with opencv-python 4.1.2.30

[emanuega]

I encountered a segmentation fault when trying to run GenerateMosaic using opencv-python 4.1.2.30. When I downgraded opencv-python to 4.0.1.24 the problem was resolved.

Full Environment:

name: merlin_env
channels:

• defaults
  dependencies:
• _libgcc_mutex=0.1=main
• blas=1.0=mkl
• blosc=1.16.3=hd408876_0
• bzip2=1.0.8=h7b6447c_0
• ca-certificates=2019.11.27=0
• certifi=2019.11.28=py37_0
• hdf5=1.10.4=hb1b8bf9_0
• intel-openmp=2019.4=243
• ld_impl_linux-64=2.33.1=h53a641e_7
• libedit=3.1.20181209=hc058e9b_0
• libffi=3.2.1=hd88cf55_4
• libgcc-ng=9.1.0=hdf63c60_0
• libgfortran-ng=7.3.0=hdf63c60_0
• libspatialindex=1.9.3=he6710b0_0
• libstdcxx-ng=9.1.0=hdf63c60_0
• lz4-c=1.8.1.2=h14c3975_0
• lzo=2.10=h49e0be7_2
• mkl=2019.4=243
• mkl-service=2.3.0=py37he904b0f_0
• mkl_fft=1.0.15=py37ha843d7b_0
• mkl_random=1.1.0=py37hd6b4f25_0
• mock=3.0.5=py37_0
• ncurses=6.1=he6710b0_1
• numexpr=2.7.0=py37h9e4a6bb_0
• numpy=1.17.4=py37hc1035e2_0
• numpy-base=1.17.4=py37hde5b4d6_0
• openssl=1.1.1d=h7b6447c_3
• pip=19.3.1=py37_0
• pytables=3.6.1=py37h71ec239_0
• python=3.7.6=h0371630_2
• readline=7.0=h7b6447c_5
• rtree=0.8.3=py37_0
• setuptools=44.0.0=py37_0
• six=1.13.0=py37_0
• snappy=1.1.7=hbae5bb6_3
• sqlite=3.30.1=h7b6447c_0
• tk=8.6.8=hbc83047_0
• wheel=0.33.6=py37_0
• xz=5.2.4=h14c3975_4
• zlib=1.2.11=h7b6447c_3
• zstd=1.3.7=h0b5b093_0
• pip:
  • alabaster==0.7.12
  • appdirs==1.4.3
  • attrs==19.3.0
  • babel==2.8.0
  • boto3==1.11.1
  • botocore==1.14.1
  • cachetools==4.0.0
  • chardet==3.0.4
  • configargparse==1.0
  • coverage==5.0.3
  • cycler==0.10.0
  • cython==0.29.14
  • datrie==0.8
  • decorator==4.4.1
  • docutils==0.15.2
  • gitdb2==2.0.6
  • gitpython==3.0.5
  • google-api-core==1.15.0
  • google-auth==1.10.0
  • google-cloud-core==1.1.0
  • google-cloud-storage==1.24.1
  • google-resumable-media==0.5.0
  • googleapis-common-protos==1.6.0
  • h5py==2.10.0
  • idna==2.8
  • imagecodecs-lite==2019.12.3
  • imageio==2.6.1
  • imagesize==1.2.0
  • importlib-metadata==1.4.0
  • jinja2==2.10.3
  • jmespath==0.9.4
  • joblib==0.14.1
  • jsonschema==3.2.0
  • kiwisolver==1.1.0
  • markupsafe==1.1.1
  • matplotlib==3.1.2
  • more-itertools==8.1.0
  • networkx==2.4
  • opencv-python==4.1.2.30
  • packaging==20.0
  • pandas==0.25.3
  • pillow==7.0.0
  • pluggy==0.13.1
  • protobuf==3.11.2
  • psutil==5.6.7
  • py==1.8.1
  • pyasn1==0.4.8
  • pyasn1-modules==0.2.8
  • pyclustering==0.9.3.1
  • pygments==2.5.2
  • pyparsing==2.4.6
  • pyqt5==5.14.1
  • pyqt5-sip==12.7.0
  • pyrsistent==0.15.7
  • pytest==5.3.2
  • pytest-cov==2.8.1
  • python-dateutil==2.8.1
  • python-dotenv==0.10.3
  • pytz==2019.3
  • pywavelets==1.1.1
  • pyyaml==5.3
  • ratelimiter==1.2.0.post0
  • requests==2.22.0
  • rsa==4.0
  • s3transfer==0.3.0
  • scikit-image==0.16.2
  • scikit-learn==0.22.1
  • scipy==1.4.1
  • seaborn==0.9.0
  • shapely==1.6.4.post2
  • smmap2==2.0.5
  • snakemake==5.9.1
  • snowballstemmer==2.0.0
  • sphinx==2.3.1
  • sphinx-rtd-theme==0.4.3
  • sphinxcontrib-applehelp==1.0.1
  • sphinxcontrib-devhelp==1.0.1
  • sphinxcontrib-htmlhelp==1.0.2
  • sphinxcontrib-jsmath==1.0.1
  • sphinxcontrib-qthelp==1.0.2
  • sphinxcontrib-serializinghtml==1.1.3
  • tifffile==2019.7.26.2
  • urllib3==1.25.7
  • wcwidth==0.1.8
  • wrapt==1.11.2
  • xmltodict==0.12.0
  • zipp==0.6.0
    prefix: /home/george/miniconda3/envs/merlin_env