mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-12-18 11:28:51 +08:00
75 lines
2.1 KiB
Python
Executable File
75 lines
2.1 KiB
Python
Executable File
#!/usr/bin/python
|
|
# -*- coding: utf-8 -*-
|
|
|
|
# Copyright 2012 Zdenko Podobný
|
|
# Author: Zdenko Podobný
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
"""
|
|
Simple python demo script of tesseract-ocr 3.02 c-api
|
|
"""
|
|
|
|
import os
|
|
import sys
|
|
import ctypes
|
|
|
|
# Demo variables
|
|
lang = "eng"
|
|
filename = "../phototest.tif"
|
|
libpath = "/usr/local/lib64/"
|
|
libpath_w = "../vs2010/DLL_Release/"
|
|
TESSDATA_PREFIX = os.environ.get('TESSDATA_PREFIX')
|
|
if not TESSDATA_PREFIX:
|
|
TESSDATA_PREFIX = "../"
|
|
|
|
if sys.platform == "win32":
|
|
libname = libpath_w + "libtesseract302.dll"
|
|
libname_alt = "libtesseract302.dll"
|
|
os.environ["PATH"] += os.pathsep + libpath_w
|
|
else:
|
|
libname = libpath + "libtesseract.so.3.0.2"
|
|
libname_alt = "libtesseract.so.3"
|
|
|
|
try:
|
|
tesseract = ctypes.cdll.LoadLibrary(libname)
|
|
except:
|
|
try:
|
|
tesseract = ctypes.cdll.LoadLibrary(libname_alt)
|
|
except WindowsError, err:
|
|
print("Trying to load '%s'..." % libname)
|
|
print("Trying to load '%s'..." % libname_alt)
|
|
print(err)
|
|
exit(1)
|
|
|
|
tesseract.TessVersion.restype = ctypes.c_char_p
|
|
tesseract_version = tesseract.TessVersion()[:4]
|
|
|
|
# We need to check library version because libtesseract.so.3 is symlink
|
|
# and can point to other version than 3.02
|
|
if float(tesseract_version) < 3.02:
|
|
print("Found tesseract-ocr library version %s." % tesseract_version)
|
|
print("C-API is present only in version 3.02!")
|
|
exit(2)
|
|
|
|
api = tesseract.TessBaseAPICreate()
|
|
rc = tesseract.TessBaseAPIInit3(api, TESSDATA_PREFIX, lang);
|
|
if (rc):
|
|
tesseract.TessBaseAPIDelete(api)
|
|
print("Could not initialize tesseract.\n")
|
|
exit(3)
|
|
|
|
text_out = tesseract.TessBaseAPIProcessPages(api, filename, None , 0);
|
|
result_text = ctypes.string_at(text_out)
|
|
print result_text
|