Setup kocr environment based on Theano container.

Dockerfile

# Dockerfile for kocr based on NGC's Theano container.
FROM nvcr.io/nvidia/theano:18.06
LABEL maintainer="lazykyama"

# Install dependencies.
RUN apt-get update && \
    apt-get install -y openssl \
        libssl-dev \
        libtool-bin \
        libcv-dev \
        libhighgui-dev \
        libcvaux-dev \
        python-opencv && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/*
RUN pip install --upgrade pip
RUN pip install pillow==5.0.0 h5py==2.7.1 Keras==2.1.4

# Set pkgconfig for OpenCV 2.4.9.1
ADD opencv.pc /usr/local/lib/pkgconfig/

# Set backend framework and memory layout as Keras default.
ADD dummy_import.py /opt
WORKDIR /opt
RUN python dummy_import.py && \
    rm dummy_import.py && \
    sed -i -e s/channels_last/channels_first/ ~/.keras/keras.json && \
    sed -i -e s/tensorflow/theano/ ~/.keras/keras.json

# Checkout core codes.
RUN git clone https://github.com/faxocr/kocr.git && \
    cd kocr && \
    git fetch origin pull/3/head:replace_preprocessing && \
    git checkout replace_preprocessing 
RUN cd /opt/kocr/src && make

dummy_import.py

try:
    import keras
except ImportError:
    pass

opencv.pc

# Package Information for pkg-config

prefix=/usr/local
exec_prefix=${prefix}
libdir=
includedir_old=${prefix}/include/opencv
includedir_new=${prefix}/include

Name: OpenCV
Description: Open Source Computer Vision Library
Version: 2.4.9.1
Cflags: -I${includedir_old} -I${includedir_new}
Libs: -lopencv_video -lopencv_objdetect -lopencv_ml -lopencv_legacy -lopencv_imgproc -lopencv_highgui -lopencv_flann -lopencv_features2d -lopencv_core -lopencv_contrib -lopencv_calib3d -lrt -lpthread -lm -ldl