How to break "select different image" CAPTCHA with Python

Question

So I have this code in Python3 that scraps data from websites through object recongnition (I used this to automate the download process inside a flash player based website) and Selenium. The problem is that I'm stuck with this website that have a custom made Captcha where the user have to select the different image from the group and I don´t know how to download or get these images from the site in order to identify the different one, has anyone solved a problem like this? or have an idea on how to solve this captcha with any other technique or method?

This is the login that has the CAPTCHA

And here's the link to the site which is in spanish. The captcha basically says "Select the different image" https://portalempresas.sb.cl/login.php

Thanks!

score 0 · Accepted Answer · edited Oct 29 '21 at 06:16

0

To download those images as png files you could do:

from io import BytesIO
from PIL import Image

# Download image function
def downloadImage(element,imgName):
    img = element.screenshot_as_png
    stream = BytesIO(img)
    image = Image.open(stream).convert("RGB")
    image.save(imgName)

# Find all the web elements of the captcha images    
image_elements = driver.find_elements_by_xpath("*//div[contains(@class,'captcha-image')]")

# Output name for the images
image_base_name = "Imagen_[idx].png"

# Download each image
for i in range(len(image_elements)):
    downloadImage(image_elements[i],image_base_name.replace("[idx]","%s"%i))

Edit 1:

If you want to compare 2 images to see if they are equal you could try with this post

Edit 2:

Using the solution edited above, these are the results:

edited Oct 29 '21 at 06:16

Nimantha

6,405
6
28
69

answered Apr 06 '20 at 18:24

EnriqueBet

1,482
2
15
23

1

It totally worked, thanks a lot bro! Saludos desde Chile carnal!! – Sebastián Muñoz Alvial Apr 06 '20 at 18:40
I am glad that it helped! Saludos carnalito! – EnriqueBet Apr 06 '20 at 19:09
the solution failed! :( when it tries to get all of the image elements through the xpath, it doesn't get them all, downloading almost a random one, please help :( – Sebastián Muñoz Alvial Apr 07 '20 at 23:44
I'll take a look and let you know how does it goes. how many images does the program dowloads? – EnriqueBet Apr 08 '20 at 00:58
If I leave it like this "...div[2]/div[*]" none :( – Sebastián Muñoz Alvial Apr 08 '20 at 03:01
I edited the code as it has some errors. Please let me know if that helps! :D – EnriqueBet Apr 08 '20 at 15:27
Omg bro you are a beast! the code works! thank you so much! I'll let you know if I have any problems. Muchísimas gracias carnal! – Sebastián Muñoz Alvial Apr 08 '20 at 16:25

How to break "select different image" CAPTCHA with Python

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