How to convert a PDF image or an image to text using Tesseract and/or Poppler?
Python 3.6.1 Mac OSX
Regarding Tesseract, I have tried so many different sample/template codes I have found online for PDF -> Text and Image -> Text. None of them seem to work.
Please let me know if you know of a code that works or a website with a good tutorial for either Tesseract, Poppler, or both.
Pytesser seems outdated. Magick seems to be a windows only program. Wand does not seem to help either.
Tesseract-OCR is what I am trying to use but I have no idea how to set up a code for it and cannot find a good tutorial that works. I can only find install tutorials.
I can use Poppler for PDF->Text , but have come across PDF images that I need to extract. I assume I need a separate code for taking the PDF and turning it into an image file and then a code for turning the image to a text file (Teseseract). Or I could use Poppler's PDFImage, which I do not know how to code for (help here would be very much appreciated as well).
My code for Poppler PDF to Text is:
import csv, re, requests, subprocess, sys
url = (
'http://gwinnetttaxcommissioner.publicaccessnow.com/'
'Portals/0/PDF/Excess%20funds%20all%20years%20-%20rev02232017.pdf'
)
r = requests.get(url, headers={'user-agent': 'Mozilla/5.0'})
filename = url.split('/')[-1].replace('%20', ' ')
with open(filename, 'wb') as fh:
fh.write(r.content)
subprocess.call(['pdftotext', '-layout', filename])
writer = csv.writer(sys.stdout)
with open(filename[:-3] + 'txt') as fh:
text = fh.read()
for line in re.findall('(?m)^d.+d$', text):
writer.writerow(re.split(r' {3,}', line))
And it works great.
I cannot figure out how to format Poppler's PDFImage though.
Additionally, how would I implement something like this in Tesseract, since it is one of the best OCRs?
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