From e0327b03beb1aa31cfecb4bd5945368020b4bd0a Mon Sep 17 00:00:00 2001
From: kev <vimagick@gmail.com>
Date: Sat, 7 Dec 2019 13:00:54 +0800
Subject: [PATCH] update tesseract

---
 tesseract/Dockerfile | 48 ++++++++++----------------------------------
 tesseract/README.md  |  6 +++---
 2 files changed, 14 insertions(+), 40 deletions(-)

diff --git a/tesseract/Dockerfile b/tesseract/Dockerfile
index 1db17c6..ae50743 100644
--- a/tesseract/Dockerfile
+++ b/tesseract/Dockerfile
@@ -1,45 +1,19 @@
 #
-# Dockerfile for tesseract
+# Dockerfile for tesseract CJK
 #
 
-FROM debian:jessie
+FROM alpine
 MAINTAINER kev <noreply@easypi.pro>
 
 RUN set -xe \
-    && apt-get update \
-    && apt-get install -y autoconf \
-                          build-essential \
-                          git \
-                          libcairo2 \
-                          libcairo2-dev \
-                          libgomp1 \
-                          libicu52 \
-                          libicu-dev \
-                          liblept4 \
-                          libleptonica-dev \
-                          libpango1.0-0 \
-                          libpango1.0-dev \
-                          libtool \
-    && git clone https://github.com/tesseract-ocr/tesseract.git \
-        && cd tesseract \
-        && ./autogen.sh \
-        && ./configure \
-        && make install \
-        && cd .. \
-    && git clone https://github.com/tesseract-ocr/tessdata.git \
-        && cd tessdata \
-        && mv * /usr/local/share/tessdata/ \
-        && cd .. \
-    && apt-get purge --auto-remove -y autoconf \
-                                      build-essential \
-                                      git \
-                                      libcairo2-dev \
-                                      libicu-dev \
-                                      libleptonica-dev \
-                                      libpango1.0-dev \
-                                      libtool \
-    && rm -rf tesseract tessdata /var/cache/apk/*
+    && apk add --no-cache \
+        tesseract-ocr \
+        tesseract-ocr-data-chi_sim \
+        tesseract-ocr-data-chi_tra \
+        tesseract-ocr-data-jpn \
+        tesseract-ocr-data-kor \
+    && tesseract --version \
+    && tesseract --list-langs
 
 ENTRYPOINT ["tesseract"]
-CMD ["-h"]
-
+CMD ["--help"]
diff --git a/tesseract/README.md b/tesseract/README.md
index 0c2f66f..f0c4a35 100644
--- a/tesseract/README.md
+++ b/tesseract/README.md
@@ -14,9 +14,9 @@ Quick Start
 -----------
 
 ```
-$ alias tesseract='docker run --rm -v `pwd`:/work -w /work vimagick/tesseract'
-$ tesseract myscan.png out
-$ cat out.txt
+$ alias tesseract='docker run --rm -v `pwd`:/data -w /data vimagick/tesseract'
+$ tesseract input.png output -l eng --psm 3
+$ cat output.txt
 ```
 
 [1]: https://github.com/tesseract-ocr/tesseract