captcha_resolver.py

import pytesseract
import sys
import argparse
try:
    import Image
except ImportError:
    from PIL import Image
from subprocess import check_output


def resolve(path):
	print("Resampling the Image")
	check_output(['convert', path, '-resample', '600', path])
	return pytesseract.image_to_string(Image.open(path))

if __name__=="__main__":
	argparser = argparse.ArgumentParser()
	argparser.add_argument('path',help = 'Captcha file path')
	args = argparser.parse_args()
	path = args.path
	print('Resolving Captcha')
	captcha_text = resolve(path)
	print('Extracted Text',captcha_text)

@neha1909 did you solve the error?

The code didn't worked for me.
I got following error.

Invalid Parameter - -resample
Traceback (most recent call last):
File "ca.py", line 22, in <module>
    captcha_text = resolve(path)
  File "ca.py", line 13, in resolve
    check_output(['convert', path, '-resample', '600', path])
  File "C:\Users\Gupta Niwas\AppData\Local\Programs\Python\Python36-32\lib\subprocess.py", line 336, in check_output
    **kwargs).stdout
  File "C:\Users\Gupta Niwas\AppData\Local\Programs\Python\Python36-32\lib\subprocess.py", line 418, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['convert', 'cap.jpg', '-resample', '600', 'cap.jpg']' returned non-zero exit status 4.

Also can anyone explain to me where is ImageMagick used here???

Hello,

I am experiencing the same error
Invalid Parameter - -resample

I do have ImageMagick installed and added to PATH. When I manually enter convert cap.jpg -resample 600 cap_resampled.jpg it does the job perfectly

Can you please suggest how you installed ImageMagick and manully convert image?

I've installed but it doesn't work for captcha :(

It does not work, the same problem

magick convert "1.png" -resample 600 "2.png" on windows?

FIX: change the path at check_output so the first argument is the full path to magick.exe.
for example,
check_output([r"C:\Program Files\ImageMagick-7.0.8-Q16\magick.exe", path, '-resample', '600', path])

Resolving Captcha
Resampling the Image
Traceback (most recent call last):
File "CaptchaSolver.py", line 22, in
captcha_text = resolve(path)
File "CaptchaSolver.py", line 13, in resolve
check_output(["C:\Program Files\ImageMagick-7.0.8-Q16", path, '-resample', '600', path])
File "C:\Python27\lib\subprocess.py", line 216, in check_output
process = Popen(stdout=PIPE, *popenargs, **kwargs)
File "C:\Python27\lib\subprocess.py", line 394, in init
errread, errwrite)
File "C:\Python27\lib\subprocess.py", line 644, in _execute_child
startupinfo)
WindowsError: [Error 5] Access is denied

Hi,
I got below error.
Please help.

Resolving Captcha
Resampling the Image
Traceback (most recent call last):
File "C:\Users\yenag\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pytesseract\pytesseract.py", line 226, in run_tesseract
proc = subprocess.Popen(cmd_args, **subprocess_args())
File "C:\Users\yenag\AppData\Local\Programs\Python\Python38-32\lib\subprocess.py", line 854, in init
self._execute_child(args, executable, preexec_fn, close_fds,
File "C:\Users\yenag\AppData\Local\Programs\Python\Python38-32\lib\subprocess.py", line 1307, in _execute_child
hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
FileNotFoundError: [WinError 2] The system cannot find the file specified

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "OCR_image_processing.py", line 22, in
captcha_text = resolve(path)
File "OCR_image_processing.py", line 14, in resolve
return pytesseract.image_to_string(Image.open(path))
File "C:\Users\yenag\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pytesseract\pytesseract.py", line 344, in image_to_string
return {
File "C:\Users\yenag\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pytesseract\pytesseract.py", line 347, in
Output.STRING: lambda: run_and_get_output(*args),
File "C:\Users\yenag\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pytesseract\pytesseract.py", line 258, in run_and_get_output
run_tesseract(**kwargs)
File "C:\Users\yenag\AppData\Local\Programs\Python\Python38-32\lib\site-packages\pytesseract\pytesseract.py", line 230, in run_tesseract
raise TesseractNotFoundError()
pytesseract.pytesseract.TesseractNotFoundError: tesseract is not installed or it's not in your path

sudo apt-get install tesseract-ocr

Code works fine but doesn't extract the captcha.