我正在用tesseract做一些OCR手术。为此,我编写了一个简单的python包装器。问题是,在最后的文本文件中,我在句子之间出现了不必要的行间隔,我需要以编程的方式删除它。例如:
1 tbsp peanut or corn oil, plus a little
extra for Cooking the scallops
2 tbsp bottled mild or medium Thai
green curry paste
2 tbsp water
2 tsp light soy sauce请注意一些线的空隙--我需要移除。如果你遇到类似的问题,请分享一些建议。谢谢。
下面是包装器:
from PIL import Image
import subprocess
import os
from wand.image import Image
import markdown2
from textblob import TextBlob
import util
import errors
tesseract_exe = "tesseract" # Name of executable to be called at command line
scratch_text_name_root = "temp" # Leave out the .txt extension
cleanup_scratch_flag = True # Temporary files cleaned up after OCR operation
pagesegmode = "-psm 0"
def call_tesseract(input_file, output_file):
args = [tesseract_exe, input_file, output_file, pagesegmode]
proc = subprocess.Popen(args)
retcode = proc.wait()
if retcode !=0:
errors.check_for_errors()
def retrieve_text(scratch_text_name_root):
inf = file(scratch_text_name_root + '.txt')
text = inf.read()
inf.close()
return text
def write_to_file(filename, string):
File = open(filename, 'w')
File.write(string)
File.close()
def image_to_string(filename):
try:
call_tesseract(filename, scratch_text_name_root)
text = retrieve_text(scratch_text_name_root)
finally:
try:
os.remove(scratch_text_name_root)
except OSError:
pass
return text
filename = "book/0001.bin.png"
text = image_to_string(filename)
print "writing to file"
write_to_file("0002.bin.txt", text)发布于 2016-02-05 18:37:58
我不知道为什么tesseract会给你这些空行,但也许一个简单的解决方法可以帮助您:
把这些空行去掉。有很多方法可以做到这一点,例如,请看这里:https://stackoverflow.com/a/3711884/4175009
或者在这里:
https://stackoverflow.com/a/2369474/4175009
这些解决方案都假设您逐行读取文件。
我喜欢这个solution,因为您可以在完成的字符串中使用它,它处理行尾中的操作系统差异(\n,\n,\r\n)。
https://stackoverflow.com/questions/35231009
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