背景

Tesseract-OCR 4.00.00devで動かない、というissueが来た。

前回記事

Tesseract-OCRのDockerコンテナ内でのビルド

otiai10.hatenablog.com

今回の成果物

Dockerfile
Docker Hub
- docker pull otiai10/tesseract:4.00.00dev

FROM debian:stretch

ARG TESS="4.00.00dev"
ARG LEPTO="1.74.2"

# Prepare dependencies
RUN apt-get update
RUN apt-get install -y \
  wget \
  make \
  autoconf \
  automake \
  libtool \
  autoconf-archive \
  pkg-config \
  libpng-dev \
  libjpeg-dev \
  libtiff-dev \
  zlib1g-dev \
  libicu-dev \
  libpango1.0-dev \
  libcairo2-dev

ENV LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/lib

# Compile Leptonica
WORKDIR /
RUN mkdir -p /tmp/leptonica \
  && wget https://github.com/DanBloomberg/leptonica/archive/${LEPTO}.tar.gz \
  && tar -xzvf ${LEPTO}.tar.gz -C /tmp/leptonica \
  && mv /tmp/leptonica/* /leptonica
WORKDIR /leptonica

RUN autoreconf -i \
  && ./autobuild \
  && ./configure \
  && make \
  && make install

# Compile Tesseract
WORKDIR /
RUN mkdir -p /tmp/tesseract \
  && wget https://github.com/tesseract-ocr/tesseract/archive/${TESS}.tar.gz \
  && tar -xzvf ${TESS}.tar.gz -C /tmp/tesseract \
  && mv /tmp/tesseract/* /tesseract
WORKDIR /tesseract

RUN ./autogen.sh \
  && ./configure \
  && make \
  && make install

# Recover location
WORKDIR /

# Load languages
RUN wget https://github.com/tesseract-ocr/tessdata/raw/master/eng.traineddata -P /usr/local/share/tessdata
RUN wget https://github.com/tesseract-ocr/tessdata/raw/master/deu.traineddata -P /usr/local/share/tessdata
RUN wget https://github.com/tesseract-ocr/tessdata/raw/master/fra.traineddata -P /usr/local/share/tessdata
RUN wget https://github.com/tesseract-ocr/tessdata/raw/master/spa.traineddata -P /usr/local/share/tessdata
RUN wget https://github.com/tesseract-ocr/tessdata/raw/master/jpn.traineddata -P /usr/local/share/tessdata